{"title":"Microstop Piloted Countersinks","description":"","products":[{"product_id":"s2-38-90-10","title":"Robert Charles Piloted Microstop Countersink - 3 Flute - Integral Pilot - Threaded Shank - 10mm Cutter Dia - 3\/32 Pilot Diameter - 90°","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Robert Charles Piloted Microstop Countersink is a precision cutting tool engineered for accurate countersinking and hole preparation. Its 3-flute design, integral pilot, and 90° countersink angle deliver clean, repeatable recesses with dependable hole alignment, making it ideal for aerospace, automotive, and precision engineering tasks.\n\u003c\/p\u003e \u003cp\u003e\nDesigned for use with microstop cages, this countersink features a threaded shank for a secure fit and reliable depth control. The pilot diameter is held to tight tolerances (−0.0005\" to −0.0015\"), ensuring exact alignment from start to finish, while the 10 mm cutter diameter supports robust material removal in demanding applications. The pilot diameter is specified at 3\/32\".\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003e3-Flute countersink geometry with 90° angle\u003c\/b\u003e: Delivers clean, uniform recesses with efficient cutting and predictable depth for consistent finishes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIntegral pilot for accurate alignment\u003c\/b\u003e: Ensures the countersink starts precisely over the hole, reducing wandering and misalignment during machining.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThreaded shank with tight pilot diameter tolerance\u003c\/b\u003e: Provides a secure fit on the machine and reliable depth control, with repeatable results across long runs (pilot diameter −0.0005\" to −0.0015\").\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis combination of precision geometry, pilot alignment, and robust shank design helps you work faster with fewer reworks and consistently high-quality finishes. In demanding environments like aerospace and automotive manufacturing, you can trust this countersink to deliver repeatable depth, clean finishes, and dependable performance across multiple cycles.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Robert Charles","offers":[{"title":"Default Title","offer_id":43418545586254,"sku":"S2.38-90-10","price":59.25,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/Piloted_Microstop_Countersinks_b32462d3-96d1-4a5e-a0e3-9610ac1cab9e.png?v=1770028256"},{"product_id":"s3-17-090-10","title":"Robert Charles Piloted Microstop Countersink - 3 Flute - Integral Pilot - Threaded Shank - 10mm Cutter Dia - 1\/8 Pilot Diameter - 90°","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Robert Charles Piloted Microstop Countersink is a precision cutting tool designed for repeatable countersinking with exact hole alignment. Its 3-flute design and integral pilot ensure starts are true and countersinks seat flush, even on tight-tolerance holes. Compatible with microstop cages, this tool delivers consistent depth control and reliable performance in demanding machining environments.\n\u003c\/p\u003e\n\u003cp\u003e Featuring a threaded shank for secure fitment and dependable depth control, this countersink is built to withstand busy shop conditions. It wears a 10 mm cutter diameter and a 1\/8\" pilot diameter with a 90° countersink angle to meet common aerospace, automotive, and precision engineering requirements. Tight tolerances elevate accuracy: the pilot diameter is held to −0.0005\" to −0.0015\", helping ensure repeatable results across parts and production runs.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eIntegral Pilot for Precise Alignment\u003c\/b\u003e: The built‑in pilot centers the countersink on the hole, delivering accurate starts and consistent flush seating with less drift.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThreaded Shank for Secure Fit and Depth Control\u003c\/b\u003e: A robust threaded connection locks into compatible holders and microstop cages, supporting repeatable depth and reliable performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTight Tolerances and Clean Geometry\u003c\/b\u003e: Pilot diameter held to −0.0005\" to −0.0015\" with a 90° angle and 10 mm cutter, providing repeatable, high‑finish countersinks with minimal chatter.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nUsed in high‑precision workflows, this countersink helps speed setup, reduce rework, and improve overall part quality by delivering accurate, flush countersinks in a single pass. Its reliable fit, precise alignment, and durable construction make it a dependable choice for critical assemblies and high‑volume production.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Robert Charles","offers":[{"title":"Default Title","offer_id":43418545619022,"sku":"S3.17-090-10","price":59.25,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/Piloted_Microstop_Countersinks_6e917f30-fa6a-4b78-bf36-40b0f2adef4c.png?v=1770028261"},{"product_id":"s3-96-90-10","title":"Robert Charles Piloted Microstop Countersink - 3 Flute - Integral Pilot - Threaded Shank - 10mm Cutter Dia - 5\/32 Pilot Diameter - 90°","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Robert Charles Piloted Microstop Countersink is a precision tool designed for repeatable countersinking with an integral pilot for accurate hole alignment. It’s ideal for professionals and hobbyists who require consistent depth control and clean, flush finishes.\n\u003c\/p\u003e\n\u003cp\u003e\nWith a 10 mm cutter diameter, 90° countersink angle, and a 5\/32\" pilot diameter, this tool, paired with microstop cages, delivers secure fitment and reliable depth control. The pilot diameter is held to tight tolerances of −0.0005\" to −0.0015\", supporting high-accuracy results in aerospace, automotive, and precision engineering applications.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003e3‑Flute Cutting Design\u003c\/b\u003e: Delivers smooth, efficient material removal for clean, repeatable countersinks and a consistent finish across each part.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIntegral Pilot with Tight Pilot Diameter\u003c\/b\u003e: Ensures precise hole alignment and repeatable countersink depth; pilot diameter held to −0.0005\" to −0.0015\" with a 5\/32\" pilot for dependable accuracy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThreaded Shank for Secure Fit and Microstop Compatibility\u003c\/b\u003e: Provides a secure, stable setup in microstop cages, delivering reliable depth control and reduced drift on demanding parts.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis countersink supports a reliable, efficient workflow by minimizing setup time and depth variation, delivering consistent, high-quality finishes in aerospace, automotive, and precision engineering projects. Its integrated pilot and robust threaded shank help you achieve predictable results batch after batch, giving you the confidence to tackle tight-tolerance pockets and high-precision assemblies.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Robert Charles","offers":[{"title":"Default Title","offer_id":43418545684558,"sku":"S3.96-90-10","price":59.25,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/Piloted_Microstop_Countersinks_f2e570a8-7b48-4211-9bad-797c87ef4043.png?v=1770028265"},{"product_id":"s4-76-90-10","title":"Robert Charles Piloted Microstop Countersink - 3 Flute - Integral Pilot - Threaded Shank - 10mm Cutter Dia - 3\/16 Pilot Diameter - 90°","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Robert Charles Piloted Microstop Countersink is a high-precision cutting tool engineered for machinists, engineers, and fabricators who need accurate countersinking with an integral pilot. With a 90° countersink geometry, a 10 mm cutter diameter, and a 3\/16\" pilot diameter, it offers precise hole alignment and uniform countersink depth. The threaded shank secures the tool in the holder and, when used with microstop cages, supports repeatable depth control for demanding production work.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eIntegral pilot for precise hole alignment\u003c\/b\u003e: The built-in pilot ensures the countersink starts true to the hole, reducing misalignment and improving repeatability in every operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e3-flute design for clean, consistent finishes\u003c\/b\u003e: Three cutting edges deliver smooth, burr-free edges and stable chip evacuation for reliable results across a range of materials.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThreaded shank for secure fit and repeatable depth control\u003c\/b\u003e: The threaded connection secures the tool in your holder and, with microstop cages, enables consistent countersink depth and reliable repeatability.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nDesigned for high-accuracy aerospace, automotive, and precision machining tasks, this countersink helps you reduce rework and variability. The pilot diameter is held to −0.0005\" to −0.0015\", translating into predictable starts and precise countersink diameters, while the combination of 10 mm cutter diameter and 90° geometry delivers standard, compatible countersinks for common fasteners. The robust construction and secure threaded shank promote long-term reliability in busy shops, delivering repeatable results with minimal downtime and easy integration into existing setups.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Robert Charles","offers":[{"title":"Default Title","offer_id":43418545750094,"sku":"S4.76-90-10","price":59.25,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/Piloted_Microstop_Countersinks_f94ec3f7-a0fa-4a32-91ff-b57fd7a67088.png?v=1770028270"},{"product_id":"s4-76-90-14","title":"Robert Charles Piloted Microstop Countersink - 3 Flute - Integral Pilot - Threaded Shank - 14mm Cutter Dia - 3\/16 Pilot Diameter - 90°","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Robert Charles Piloted Microstop Countersink is a precision tool designed for accurate countersinking in aerospace, automotive, and precision engineering. With a 90° countersink angle, a 14 mm cutter diameter, and a 3\/16\" pilot diameter, it is built to partner with microstop cages for repeatable depth control and exact hole alignment.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eIntegral Pilot for Accurate Alignment\u003c\/b\u003e: The built‑in pilot ensures holes are aligned precisely, delivering consistent countersinks and concentric results with minimal setup.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThreaded Shank for Secure Fitment and Depth Control\u003c\/b\u003e: The threaded connection locks firmly in your holder or tool holder, providing dependable depth control and reduced drift during operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTight Tolerance Pilot Diameter\u003c\/b\u003e: Pilot diameter held to −0.0005\" to −0.0015\" delivers exceptional alignment accuracy, making it ideal for high‑precision work in demanding environments.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nBy delivering precise alignment and consistent countersink depth, this tool streamlines your workflow, reduces setup time, and yields clean, flush countersinks that meet tight specifications batch after batch. Designed for durability and reliable performance in demanding environments, it helps you improve part quality and overall productivity.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Robert Charles","offers":[{"title":"Default Title","offer_id":43418545782862,"sku":"S4.76-90-14","price":63.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/Piloted_Microstop_Countersinks_f38d3e97-88e3-49ca-92f5-2ca824623d9e.png?v=1770028274"},{"product_id":"s6-35-90-14","title":"Robert Charles Piloted Microstop Countersink - 3 Flute - Integral Pilot - Threaded Shank - 14mm Cutter Dia - 1\/4 Pilot Diameter - 90°","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Robert Charles Piloted Microstop Countersink is a precision countersink tool designed for repeatable, accurate hole preparation. It combines a 3-flute cutting design with an integral pilot to guide the countersink precisely into the drilled hole, delivering concentric starts and flush finishes. With a 14 mm cutter diameter, a 1\/4 in pilot diameter, and a 90° countersink angle, it covers common aerospace, automotive, and precision manufacturing needs.\n\u003c\/p\u003e \u003cp\u003e\nEngineered to work with microstop cages, the threaded shank provides a secure fit and reliable depth control, so you can rely on consistent results across setups. Tight manufacturing tolerances place the pilot diameter at −0.0005\" to −0.0015\", ensuring high-precision alignment and repeatability in demanding applications.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eIntegral Pilot for Precise Alignment\u003c\/b\u003e: The built‑in pilot guides the countersink to the exact location, producing concentric starts and reducing wandering for clean, accurate finishes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThreaded Shank with Secure Depth Control\u003c\/b\u003e: The threaded fit works seamlessly with microstop cages, delivering dependable depth control and reducing tool slip during repeated passes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThree‑Flute Design with Tight Pilot Tolerance\u003c\/b\u003e: Balanced chip evacuation and a smooth finish from the 3-flute geometry, paired with a pilot tolerance of −0.0005\" to −0.0015\" for consistent, repeatable results.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nTogether, these features translate into faster setups, fewer reworks, and reliably flush countersinks on precision parts—making it a dependable choice for critical manufacturing, aerospace, and automotive work where accuracy matters.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Robert Charles","offers":[{"title":"Default Title","offer_id":43418545815630,"sku":"S6.35-90-14","price":63.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/Piloted_Microstop_Countersinks_88b0ba69-2054-4021-b95d-5dd105121ebe.png?v=1770028279"},{"product_id":"s7-94-90-17","title":"Robert Charles Piloted Microstop Countersink - 3 Flute - Integral Pilot - Threaded Shank - 17mm Cutter Dia - 5\/16 Pilot Diameter - 90°","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Robert Charles Piloted Microstop Countersink is a precision tool designed for machinists, engineers, and fabricators who require exact countersinks with reliable depth control. Featuring a 3-flute cutting design and an integral pilot, it aligns perfectly with predrilled holes to deliver consistent, burr-free countersinks at a 90° angle. Its threaded shank mounts securely in standard holders, making setup quick and dependable for demanding aerospace, automotive, and precision machining tasks.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eIntegrated Pilot and 3‑Flute Cutting:\u003c\/b\u003e The built‑in pilot guides the cutter for accurate hole alignment and repeatable countersinks, reducing misalignment across passes and enhancing finish quality.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSecure Threaded Shank for Reliable Depth Control:\u003c\/b\u003e The threaded shank locks firmly in place with microstop cages, minimizing slip and chatter to maintain consistent countersink depth every time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHigh‑Precision Geometry (17 mm Dia, 5\/16\" Pilot, 90°):\u003c\/b\u003e Tight tolerances—pilot diameter held to −0.0005\" to −0.0015\"—deliver repeatable, clean finishes suitable for critical aerospace and automotive applications.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis countersink is engineered to improve workflow by delivering dependable alignment, stable depth control, and crisp, uniform finishes across complex assemblies. Its combination of precise tolerances, robust threading, and compatible microstop integration helps reduce rework and downtime, enabling engineers and technicians to achieve high accuracy with confidence in every project.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Robert Charles","offers":[{"title":"Default Title","offer_id":43418545848398,"sku":"S7.94-90-17","price":102.7,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/Piloted_Microstop_Countersinks_467f5eda-d563-4c90-a178-19f7cfc6032c.png?v=1770028283"},{"product_id":"s9-52-90-21","title":"Robert Charles Piloted Microstop Countersink - 3 Flute - Integral Pilot - Threaded Shank - 21mm Cutter Dia - 3\/8 Pilot Diameter - 90°","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Robert Charles Piloted Microstop Countersink is a precision cutting tool designed to create accurate, flush countersinks with a built-in pilot for effortless hole alignment. With a 21 mm cutter diameter and a 90° countersink angle, it delivers clean, repeatable results ideal for aerospace, automotive, and precision engineering parts. The integral pilot ensures consistent starts and minimizes walk, so each hole is perfectly aligned before fasteners are installed.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eIntegral pilot with 3-flute design\u003c\/b\u003e: aligns precisely with the drilled hole and delivers smooth, controlled cutting for consistent countersink depth across every part.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThreaded shank for secure fitment\u003c\/b\u003e: locks firmly into compatible holders or microstop cages, providing reliable depth control and minimizing tool deflection duringoperation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTight pilot tolerance for high-accuracy results\u003c\/b\u003e: pilot diameter held to −0.0005\" to −0.0015\", ensuring repeatable alignment and exceptional surface finish in high-precision work.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis combination of a robust 21 mm cutter, 90° countersink, and meticulously controlled pilot diameter helps you streamline setup, reduce rework, and achieve precise, repeatable countersinks in demanding applications across aerospace, automotive, and precision manufacturing environments.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Robert Charles","offers":[{"title":"Default Title","offer_id":43418545881166,"sku":"S9.52-90-21","price":107.44,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/Piloted_Microstop_Countersinks_ec8e92b6-ddc9-4d43-b6a0-cc2f16f16d99.png?v=1770028288"},{"product_id":"s2-38-100-10","title":"Robert Charles Piloted Microstop Countersink - 3 Flute - Integral Pilot - Threaded Shank - 10mm Cutter Dia - 3\/32 Pilot Diameter - 100°","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Robert Charles Piloted Microstop Countersink is a precision, 3‑flute countersink with an integral pilot that guarantees accurate hole entry and consistent countersinking. Designed for aerospace, automotive, and precision engineering work, it partners with Microstop cages to deliver repeatable depth and alignment, using a 10 mm cutter diameter, 3\/32 in pilot diameter, and a 100° countersink angle.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003e3‑Flute Cutting Design\u003c\/b\u003e: Provides fast, clean, and consistent countersinks with efficient chip removal, helping you maintain throughput and produce a uniform finish across many holes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIntegral Pilot for Precise Alignment\u003c\/b\u003e: Built‑in pilot keeps the countersink centered in the hole, reducing wandering and ensuring exact entry every time, which minimizes rework.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThreaded Shank for Secure Fit and Depth Control\u003c\/b\u003e: Secure threaded interface works with Microstop cages to deliver repeatable depth settings and resist slip under vibration, ensuring reliable performance across production runs.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nWith pilot diameter held to −0.0005\" to −0.0015\" and a robust, fixed 10 mm cutter, this tool supports high‑precision work where tight tolerances matter. Its compatibility with Microstop cages enables quick, repeatable depth setup, helping engineers, machinists, and purchasers achieve consistent results in demanding aerospace, automotive, and precision‑engineering applications.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Robert Charles","offers":[{"title":"Default Title","offer_id":43418545979470,"sku":"S2.38-100-10","price":37.92,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/Piloted_Microstop_Countersinks_1de14fed-f65f-4063-b342-7f332bf347bb.png?v=1770028293"},{"product_id":"s3-17-100-10","title":"Robert Charles Piloted Microstop Countersink - 3 Flute - Integral Pilot - Threaded Shank - 10mm Cutter Dia - 1\/8 Pilot Diameter - 100°","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Robert Charles Piloted Microstop Countersink is a precision cutting tool designed for high-accuracy countersinking with an integral pilot. It features a 10 mm cutter diameter, a 1\/8\" pilot diameter, and a 100° countersink angle to deliver clean, repeatable results in aerospace, automotive, and precision engineering applications. Designed for use with microstop cages, its threaded shank provides a secure fit and reliable depth control, with the pilot diameter held to −0.0005\" to −0.0015\" for consistent, concentric countersinks.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eIntegral Pilot for Accurate Alignment\u003c\/b\u003e: Centers the countersink with the drilled hole, delivering concentric countersinks and reducing misalignment in precision work.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThreaded Shank for Secure Fitment and Depth Control\u003c\/b\u003e: Locks into compatible holders or microstop cages, enabling reliable depth control and repeatable results in production environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThree-Flute Cutting Geometry\u003c\/b\u003e: The 3-flute design provides efficient material removal with smooth cutting and minimal chatter, producing clean finishes and consistent depth across parts.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis combination of precision geometry, tight tolerances, and secure mounting makes it ideal for high-accuracy aerospace, automotive, and precision-engineering tasks. It helps you reduce setup time, minimize rework from misaligned countersinks, and achieve repeatable, production-grade results with every hole.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Robert Charles","offers":[{"title":"Default Title","offer_id":43418546045006,"sku":"S3.17-100-10","price":37.92,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/Piloted_Microstop_Countersinks_a07e9463-c294-4816-a285-e363d032ba07.png?v=1770028298"},{"product_id":"s3-96-100-10","title":"Robert Charles Piloted Microstop Countersink - 3 Flute - Integral Pilot - Threaded Shank - 10mm Cutter Dia - 5\/32 Pilot Diameter - 100°","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Robert Charles Piloted Microstop Countersink is a precision tooling solution designed for high-accuracy hole preparation in aerospace, automotive, and precision engineering projects.\n\u003c\/p\u003e\n\u003cp\u003e\nFeaturing a 3-flute cutting design and an integral pilot, it aligns the countersink with the bore for consistent bevels in a single pass. The threaded shank works with microstop cages to provide secure fitment and reliable depth control, making it ideal for production environments that demand repeatable results.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eIntegral Pilot Alignment with 100° Profile\u003c\/b\u003e: Ensures true hole alignment and a clean, flush countersink in a single pass, using a 10 mm cutter diameter and a precise 100° bevel for reliable finishes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSecure Threaded Shank with Depth Control\u003c\/b\u003e: Locks firmly into your setup and microstop cage, delivering repeatable depth stops and stable performance across multiple parts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTight Pilot Diameter Tolerance\u003c\/b\u003e: Pilot diameter held to −0.0005\" to −0.0015\", providing consistent, aerospace-grade precision for demanding applications.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis combination of precise geometry, secure fitment, and tight tolerances helps you complete assemblies with confidence—reducing rework, speeding setup, and delivering consistently high-quality countersink finishes across production runs.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Robert Charles","offers":[{"title":"Default Title","offer_id":43418546077774,"sku":"S3.96-100-10","price":37.92,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/Piloted_Microstop_Countersinks_54575f34-4d2a-4819-93f6-4e1a0adcb403.png?v=1770028303"},{"product_id":"s4-76-100-10","title":"Robert Charles Piloted Microstop Countersink - 3 Flute - Integral Pilot - Threaded Shank - 10mm Cutter Dia - 3\/16 Pilot Diameter - 100°","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Robert Charles Piloted Microstop Countersink is a precision cutting tool designed for accurate countersinking with an integral pilot. Built for high-accuracy work in aerospace, automotive, and precision engineering, it ensures consistent alignment and clean finishes every time. It features a 100° countersink angle, a 10mm cutter diameter, and a 3\/16\" pilot diameter, delivering a balanced combination of material removal and geometric control.\n\u003c\/p\u003e\n\u003cp\u003e\nThe integral pilot and threaded shank are engineered for reliable performance in microstop cages and standard tooling setups. The pilot diameter is held to −0.0005\" to −0.0015\" for exceptional concentricity and repeatable results across multiple parts and setups.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eIntegral pilot for precise alignment\u003c\/b\u003e: The built-in pilot guides the countersink into the hole, delivering repeatable concentric countersinking and reducing drift for consistent starts and finishes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThreaded shank for secure depth control\u003c\/b\u003e: A robust threaded shank ensures a secure fit in compatible holders and microstop cages, enabling reliable depth setting and quick, predictable tool changes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e3‑flute design with 100° cutter\u003c\/b\u003e: Efficient material removal with a clean, burr-free finish; the 10mm cutter diameter provides a strong balance between aggressiveness and control for demanding applications.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nTogether, this tool delivers repeatable, high-quality countersinks with tight tolerance on the pilot, improving part accuracy and reducing rework. Its secure hardware, integrated pilot, and proven geometry help streamline setups, speed production, and maintain consistent results across aerospace, automotive, and precision engineering workloads.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Robert Charles","offers":[{"title":"Default Title","offer_id":43418546110542,"sku":"S4.76-100-10","price":37.92,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/Piloted_Microstop_Countersinks_4ed5460e-bc34-4f74-9b21-f8fbcbb8814b.png?v=1770028307"},{"product_id":"s4-76-100-14","title":"Robert Charles Piloted Microstop Countersink - 3 Flute - Integral Pilot - Threaded Shank - 14mm Cutter Dia - 3\/16 Pilot Diameter - 100°","description":"\u003cdiv\u003e\n\u003cp\u003eThe Robert Charles Piloted Microstop Countersink combines a precision 3‑flute cutting head (14 mm cutter diameter) with an integral pilot (3\/16\" diameter) and a 100° countersink angle for exact hole alignment and a clean, flush finish. Designed for use with microstop cages, its threaded shank provides a secure fit and reliable depth control for repeatable results in aerospace, automotive, and precision engineering work.\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003e3‑Flute cutting design for smooth, consistent countersinks\u003c\/b\u003e: Delivers clean edges and repeatable depths across a range of materials with minimal burrs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIntegral pilot with tight diameter tolerance\u003c\/b\u003e: The pilot diameter is held to −0.0005\" to −0.0015\", ensuring exact alignment and repeatable starts for high‑precision work.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThreaded shank for secure fit and depth control\u003c\/b\u003e: Provides a firm, slip‑free attachment and reliable depth stops when used with microstop cages and compatible holders.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eThis combination of precision features translates into real‑world advantages: faster setups thanks to an exact pilot, repeatable countersinks that improve finish quality, and reduced rework from misaligned holes. The threaded shank and microstop cage compatibility deliver dependable depth control across demanding aerospace and automotive manufacturing environments, helping you finish projects on time with consistent results.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Robert Charles","offers":[{"title":"Default Title","offer_id":43418546143310,"sku":"S4.76-100-14","price":45.82,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/Piloted_Microstop_Countersinks_961acd3a-0f69-46c5-a936-7bb2daf91931.png?v=1770028312"},{"product_id":"s6-35-100-14","title":"Robert Charles Piloted Microstop Countersink - 3 Flute - Integral Pilot - Threaded Shank - 14mm Cutter Dia - 1\/4 Pilot Diameter - 100°","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Robert Charles Piloted Microstop Countersink is built for precision-minded shops and demanding applications. With a 3-flute cutting design and an integral pilot, it delivers accurate hole alignment and consistent countersinking in a single, efficient pass. Designed for use with microstop cages, the threaded shank provides a secure fit and reliable depth control, so you can trust repeatable results on every part. The pilot diameter is held to −0.0005\" to −0.0015\", enabling high-accuracy work in aerospace, automotive, and other precision engineering environments.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003e3‑Flute cutting design\u003c\/b\u003e: Optimizes material removal for clean, burr-free countersinks with minimal vibration, improving surface finish and reducing rework.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIntegral pilot for accurate hole alignment\u003c\/b\u003e: Ensures true starts and consistent countersink depth, supporting repeatable results across multiple components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThreaded shank with microstop compatibility\u003c\/b\u003e: Delivers secure fitment in microstop cages and dependable depth control for reliable, repeatable performance.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis countersink simplifies high-precision assembly workflows by delivering consistent chamfers and reliable depth control you can count on. Its tight pilot tolerance supports repeatable starts across assemblies, while the robust construction stands up to the rigors of aerospace, automotive, and precision manufacturing environments. Choosing this tool helps you reduce setup time, minimize deviations, and achieve uniform finish quality across critical components.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Robert Charles","offers":[{"title":"Default Title","offer_id":43418546176078,"sku":"S6.35-100-14","price":45.82,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/Piloted_Microstop_Countersinks_11823eb4-4654-4f53-a135-71c450bfb288.png?v=1770028317"},{"product_id":"s7-94-100-17","title":"Robert Charles Piloted Microstop Countersink - 3 Flute - Integral Pilot - Threaded Shank - 17mm Cutter Dia - 5\/16 Pilot Diameter - 100°","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Robert Charles Piloted Microstop Countersink is a precision 3-flute countersink with an integral pilot, designed for repeatable, high-accuracy countersinking. Its 17 mm cutter diameter and 100° countersink angle deliver clean, uniform chamfers on aerospace, automotive, and precision-engineering parts. The integrated pilot aligns with drilled holes for true positioning, while the threaded shank locks into microstop cages for secure depth control and quick, repeatable setups. The pilot diameter is held to −0.0005\" to −0.0015\" to maintain tight tolerances across jobs.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003ePrecision 3-Flute Cutting Design\u003c\/b\u003e: enables efficient material removal with minimal deflection, producing consistent countersinks and smooth edge quality across production runs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIntegral Pilot for Accurate Hole Alignment\u003c\/b\u003e: built-in pilot guides the cutter precisely to the hole, reducing misalignment and rework in assemblies.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThreaded Shank with Microstop Cage Compatibility\u003c\/b\u003e: secure fit and reliable depth control, supporting quick setups and repeatable countersink depths.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nEngineered for reliability in demanding workflows, this countersink helps you improve first-pass yield, shorten setup times, and achieve consistent, professional results in every hole. Its robust construction and tight pilot tolerances translate to fewer tool changes, less scrap, and clearer, cleaner finishes across aerospace, automotive, and precision-engineering applications.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Robert Charles","offers":[{"title":"Default Title","offer_id":43418546208846,"sku":"S7.94-100-17","price":65.57,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/Piloted_Microstop_Countersinks_240d14f0-a341-46b9-8cff-aa52d280af5d.png?v=1770028322"},{"product_id":"s9-52-100-21","title":"Robert Charles Piloted Microstop Countersink - 3 Flute - Integral Pilot - Threaded Shank - 21mm Cutter Dia - 3\/8 Pilot Diameter - 100°","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Robert Charles Piloted Microstop Countersink is a precision tool designed for high-accuracy countersinking with an integral pilot. It features a 21 mm cutter diameter and a 3\/8\" pilot diameter, plus a 100° countersink angle, making it well-suited for aerospace, automotive, and other precision engineering applications. The 3‑flute cutting design ensures efficient material removal and a clean finish, even in challenging workpieces.\n\u003c\/p\u003e \u003cp\u003e\nDesigned to work with microstop cages, the threaded shank provides a secure fit and reliable depth control, helping you maintain consistent results across batches. The pilot diameter is held to tight tolerances (-0.0005\" to -0.0015\"), delivering repeatable alignment and precise countersink depth every time.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003ePrecision 3‑Flute Cutting Design\u003c\/b\u003e: Delivers clean, controlled countersinking with efficient chip evacuation for fast, reliable production.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIntegral Pilot for Accurate Hole Alignment\u003c\/b\u003e: Keeps the countersink centered in the hole, reducing drift and ensuring consistent depth across parts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThreaded Shank with Microstop Cage Compatibility\u003c\/b\u003e: Ensures a secure fit and stable depth control in microstop setups, minimizing setup time and chatter.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis combination of precise geometry, tight pilot tolerances, and robust mounting makes the tool a dependable choice for technicians and engineers seeking repeatable, high-quality countersinking results in demanding manufacturing environments.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Robert Charles","offers":[{"title":"Default Title","offer_id":43418546241614,"sku":"S9.52-100-21","price":69.52,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/Piloted_Microstop_Countersinks_155d78a0-1494-477f-8b41-7569c9e5a09f.png?v=1770028326"},{"product_id":"s2-38-120-10","title":"Robert Charles Piloted Microstop Countersink - 3 Flute - Integral Pilot - Threaded Shank - 10mm Cutter Dia - 3\/32 Pilot Diameter - 120°","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Robert Charles Piloted Microstop Countersink is a precision tool designed to produce clean, flush countersinks with exact hole alignment. Featuring a 10 mm cutter diameter and a 3\/32\" pilot, its 3‑flute cutting design delivers smooth cutting action and consistent bevels, even in demanding materials. The integral pilot ensures the countersink starts exactly where intended, reducing wandering and misalignment. With a 120° countersink angle, it fits standard fastener seating for reliable assemblies.\n\u003c\/p\u003e \u003cp\u003eDesigned for use with microstop cages, the threaded shank provides a secure fit and dependable depth control, so you can count on repeatable results across multiple parts and setups.\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eIntegral Pilot with 3-Flute Cutting\u003c\/b\u003e: Delivers precise hole location and smooth, burr‑free countersinks for high‑quality finishes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThreaded Shank for Secure Fit and Depth Control\u003c\/b\u003e: Ensures a rigid, repeatable connection to your toolholder and microstop cage for consistent depths every time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTight Pilot Diameter Tolerance and 120° Countersink\u003c\/b\u003e: Pilot diameter held to −0.0005\" to −0.0015\" for repeatable starts, with a standard 120° bevel that aligns with common fastener heads.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis countersink is ideal for aerospace, automotive, and precision engineering applications where tight tolerances, reliable depth control, and burr-free finishes are essential. By combining an integral pilot, rigid threaded engagement, and meticulous tolerances, it helps you reduce rework, speed setup, and achieve consistently accurate results across high‑volume or critical assemblies.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Robert Charles","offers":[{"title":"Default Title","offer_id":43418546274382,"sku":"S2.38-120-10","price":60.04,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/Piloted_Microstop_Countersinks_ddedbb24-ad5e-4ded-8042-de6fef3ea44e.png?v=1770028331"},{"product_id":"s3-17-120-10","title":"Robert Charles Piloted Microstop Countersink - 3 Flute - Integral Pilot - Threaded Shank - 10mm Cutter Dia - 1\/8 Pilot Diameter - 120°","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Robert Charles Piloted Microstop Countersink is a precision cutting tool designed for accurate countersinking in metal components. It features a 120° countersink angle, a 10 mm cutter diameter, and an integral 1\/8\" (0.125\") pilot that centers each hole before the countersink begins. Built for use with microstop cages, this tool delivers repeatable depths and consistent finishes across parts and applications.\n\u003c\/p\u003e \u003cp\u003e\nTo ensure long-term accuracy, the pilot diameter is held to −0.0005\" to −0.0015\" and the shank is threaded for a secure fit in compatible setups, providing reliable depth control in demanding production environments such as aerospace, automotive, and precision engineering.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003ePrecise 3‑Flute Design\u003c\/b\u003e: The three-flute geometry delivers clean, consistent countersinks with efficient chip removal and a smooth, burr-free finish, even in tough materials.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIntegral Pilot for Accurate Alignment\u003c\/b\u003e: The built‑in pilot keeps the countersink perfectly centered on the hole, ensuring repeatable depth and hole-to-hole consistency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSecure Threaded Shank with Depth Control\u003c\/b\u003e: The threaded shank locks securely into microstop cages, providing reliable depth stopping and reduced runout for dependable, repeatable results.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis tool combines precise geometry, integrated alignment, and secure mounting to streamline your workflow. Expect faster setups, fewer reworks, and tighter tolerances across aerospace, automotive, and precision assemblies, all while maintaining quality and consistency in every part.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Robert Charles","offers":[{"title":"Default Title","offer_id":43418546307150,"sku":"S3.17-120-10","price":60.04,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/Piloted_Microstop_Countersinks_34e634c1-22d9-4947-ac5a-1b6d8816970b.png?v=1770028336"},{"product_id":"s3-96-120-10","title":"Robert Charles Piloted Microstop Countersink - 3 Flute - Integral Pilot - Threaded Shank - 10mm Cutter Dia - 5\/32 Pilot Diameter - 120°","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Robert Charles Piloted Microstop Countersink uses a 10mm cutter diameter and a 5\/32\" pilot diameter with a 120° countersink angle to deliver precise, clean countersinks every time. It features a precision 3‑flute cutting design and an integral pilot for accurate hole alignment, helping you achieve repeatable results across production runs. Designed for use with microstop cages, its threaded shank provides a secure fit and reliable depth control. The pilot diameter is held to −0.0005\" to −0.0015\", making it ideal for high-accuracy aerospace, automotive, and precision engineering applications.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003ePrecision 3‑Flute Cutting for Consistent Countersinking\u003c\/b\u003e: Delivers smooth material removal and repeatable countersink depth, reducing chatter and finishing time across parts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIntegral Pilot for Reliable Hole Alignment\u003c\/b\u003e: Built‑in pilot ensures precise indexing, minimizing setup time and misalignment in busy shops.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThreaded Shank with Secure Depth Control\u003c\/b\u003e: Secure fit in compatible holders and microstop cages ensures stable depth control and reduced downtime between setups.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis countersink is built to support demanding workflows in aerospace, automotive, and precision manufacturing, helping you improve first‑pass quality, reduce rework, and maintain tight tolerances across batches.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Robert Charles","offers":[{"title":"Default Title","offer_id":43418546339918,"sku":"S3.96-120-10","price":60.04,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/Piloted_Microstop_Countersinks_1af78e56-d629-4eec-abfe-53c075406f63.png?v=1770028340"},{"product_id":"s4-76-120-10","title":"Robert Charles Piloted Microstop Countersink - 3 Flute - Integral Pilot - Threaded Shank - 10mm Cutter Dia - 3\/16 Pilot Diameter - 120°","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Robert Charles Piloted Microstop Countersink is a precision tool designed for accurate countersinking with an integrated pilot. With a 120° countersink angle, a 10 mm cutter diameter, and a 3-flute cutting geometry, it delivers clean, consistent countersinks across aerospace, automotive, and precision engineering applications. The integral pilot ensures the countersink starts exactly where you intend, helping you achieve repeatable results every pass.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eIntegral Pilot for Concentric Alignment\u003c\/b\u003e: Keeps the countersink perfectly aligned with the drilled hole, reducing wander and ensuring each countersink starts true to size for smooth assembly and precise screw seating.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTight Pilot Diameter Tolerance\u003c\/b\u003e: Pilot diameter held to −0.0005\" to −0.0015\", delivering exceptional repeatability and reliable depth control across lots of parts and multiple setups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThreaded Shank with Microstop Cage Compatibility\u003c\/b\u003e: Secure, quick-lock fit in microstop cages that enables precise depth control and fast tool changes, minimizing downtime in high-volume or precision workflows.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nDesigned to work seamlessly in demanding environments, this countersink provides consistent performance from part to part. The combination of a robust 3-flute design, integral pilot, and threaded shank supports accurate hole alignment, controlled depth, and clean edge quality—helping you reduce rework, speed up setup, and achieve professional-grade finishes on every project.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Robert Charles","offers":[{"title":"Default Title","offer_id":43418546372686,"sku":"S4.76-120-10","price":60.04,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/Piloted_Microstop_Countersinks_c126b250-9124-41e3-8314-9a9c4df4eac4.png?v=1770028345"},{"product_id":"s4-76-120-14","title":"Robert Charles Piloted Microstop Countersink - 3 Flute - Integral Pilot - Threaded Shank - 14mm Cutter Dia - 3\/16 Pilot Diameter - 120°","description":"\u003cdiv\u003e\n\u003cp\u003eThe Robert Charles Piloted Microstop Countersink is a precision cutting tool that pairs a 3-flute countersink with an integral pilot for accurate hole alignment and consistent finishes. It features a 14 mm cutter diameter, 120° countersink angle, and a threaded shank for secure fitment and reliable depth control, making it ideal for aerospace, automotive, and precision manufacturing applications.\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003e14 mm Cutter Diameter with 120° Countersink Geometry\u003c\/b\u003e: Delivers clean, consistent countersinks with a wide entry and smooth chamfer across a range of materials, reducing finishing time and post-processing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIntegral Pilot with Tight Tolerance\u003c\/b\u003e: Built-in pilot keeps the countersink precisely centered, with pilot diameter tolerance of −0.0005\" to −0.0015\" for reliable hole alignment across cycles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThreaded Shank for Secure Depth Control and Microstop Cage Compatibility\u003c\/b\u003e: Secure threading ensures repeatable depth control when paired with microstop cages, enabling quick, tool-change friendly setup and dependable results.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWith this countersink, you achieve repeatable starts, precise depth control, and smooth, burr-free finishes on every part. The robust construction and tight pilot tolerances reduce rework, speed up setup, and support consistent results in high-volume production, giving you greater confidence and fewer bottlenecks in your workflow.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Robert Charles","offers":[{"title":"Default Title","offer_id":43418546405454,"sku":"S4.76-120-14","price":63.2,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/Piloted_Microstop_Countersinks_3a6b59c1-7aad-47eb-9565-a8316e7948a6.png?v=1770028350"},{"product_id":"s6-35-120-14","title":"Robert Charles Piloted Microstop Countersink - 3 Flute - Integral Pilot - Threaded Shank - 14mm Cutter Dia - 1\/4 Pilot Diameter - 120°","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Robert Charles Piloted Microstop Countersink is a precision, 3-flute countersink with an integral pilot and threaded shank, designed for accurate countersinking and repeatable hole alignment. With a 14 mm cutter diameter, 120° countersink angle, and a 1\/4\" pilot diameter, it is built for high-accuracy applications in aerospace, automotive, and precision engineering—especially when used with microstop cages for depth control. The pilot diameter is held to tight tolerances of −0.0005\" to −0.0015\", ensuring repeatable starts and precise depths.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eThree-Flute Cutting Design\u003c\/b\u003e: Enables efficient material removal and clean edges, delivering consistent countersinks with reduced chatter and easy chip evacuation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIntegral Pilot for Accurate Alignment\u003c\/b\u003e: Centers the countersink with the hole, delivering repeatable depths and minimizing misalignment and rework across parts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThreaded Shank with Microstop Cage Compatibility\u003c\/b\u003e: Secure tool retention and reliable depth control in microstop setups, with a tight pilot diameter tolerance to maintain precision across multiple parts.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThe tool is built for reliability in demanding environments, helping you streamline workflows, reduce setup time, and achieve consistent, high-quality finishes. Its precise dimensions and secure fit support accurate production across aerospace, automotive, and precision engineering applications, making it a dependable choice for professionals who value repeatability and performance.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Robert Charles","offers":[{"title":"Default Title","offer_id":43418546438222,"sku":"S6.35-120-14","price":63.2,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/Piloted_Microstop_Countersinks_290d1c5e-64c2-482e-bfd3-7917cf2a33e5.png?v=1770028354"},{"product_id":"s7-94-120-17","title":"Robert Charles Piloted Microstop Countersink - 3 Flute - Integral Pilot - Threaded Shank - 17mm Cutter Dia - 5\/16 Pilot Diameter - 120°","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Robert Charles Piloted Microstop Countersink is a precision tool designed for repeatable, accurately aligned countersinks in drilled holes. It features a 3-flute cutting design, an integral pilot, a 17 mm cutter diameter, and a 120° countersink angle, all compatible with microstop cages to maintain exact depth control. The tool is ideal for aerospace, automotive, and precision engineering tasks where consistent results and tight tolerances matter. The pilot diameter is specified as 5\/16\" and is manufactured to tight tolerances for high-accuracy work.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eIntegral pilot with 3‑flute design\u003c\/b\u003e: The built‑in pilot guides the countersink precisely into the hole while the 3 flutes deliver efficient material removal and a clean, uniform edge, reducing wandering and rework.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThreaded shank for secure fitment and depth control\u003c\/b\u003e: The threaded shank locks firmly in place and works seamlessly with depth‑control setups, ensuring stable operation and consistent countersink depth across parts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTight-tolerance pilot diameter for repeatable accuracy\u003c\/b\u003e: Pilot diameter held to −0.0005\" to −0.0015\" (5\/16\" nominal) delivers dependable center alignment and uniform countersinks, even in high‑accuracy aerospace and automotive applications.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nDesigned for demanding work streams, this countersink helps you achieve accurate, burr-free finishes with fewer cycles and less setup time. Its robust construction and precise tolerances translate to improved workflow efficiency, better part quality, and greater confidence in high-precision assemblies.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Robert Charles","offers":[{"title":"Default Title","offer_id":43418546470990,"sku":"S7.94-120-17","price":102.7,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/Piloted_Microstop_Countersinks_1ee52f71-9139-4e15-8f04-95c204d4c750.png?v=1770028359"},{"product_id":"s9-52-120-21","title":"Robert Charles Piloted Microstop Countersink - 3 Flute - Integral Pilot - Threaded Shank - 21mm Cutter Dia - 3\/8 Pilot Diameter - 120°","description":"\u003cdiv\u003e\n\u003cp\u003eThe Robert Charles Piloted Microstop Countersink is a precision countersinking tool designed for accurate hole alignment and consistent seating. With a 21 mm cutter diameter, a 3\/8\" pilot diameter, and a 120° countersink angle, it is ideal for aerospace, automotive, and precision engineering work and is designed to pair with microstop cages for reliable depth control.\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003ePrecision 3‑Flute Cutter\u003c\/b\u003e: Delivers clean, burr-free countersinks with stable cutting action for repeatable results across a range of materials.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIntegral Pilot with Tight Tolerance\u003c\/b\u003e: Keeps the hole centered and the countersink depth consistent, with the pilot diameter held to −0.0005\" to −0.0015\" for aerospace‑grade accuracy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThreaded Shank for Secure Depth Control\u003c\/b\u003e: Mates securely with microstop cages and standard setups, providing reliable depth stop and minimal runout during machining.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eDesigned for demanding applications, this countersink reduces rework, speeds up setup, and helps achieve consistent, high-quality seating. The combination of a rigid build, tight pilot tolerances, and microstop compatibility translates to longer tool life, fewer interruptions, and greater confidence when producing critical assemblies—from precision panels to aerospace brackets.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Robert Charles","offers":[{"title":"Default Title","offer_id":43418546503758,"sku":"S9.52-120-21","price":107.44,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/Piloted_Microstop_Countersinks_677b8672-a58f-4479-8ecd-f0c6bbeb6d6e.png?v=1770028363"},{"product_id":"sunf3-32-100-1-2","title":"Robert Charles Piloted Microstop Countersink - 3 Flute - Integral Pilot - Threaded Shank - 3\/32 Pilot Diameter - 100°","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Robert Charles Piloted Microstop Countersink is a precision 3-flute tooling solution with an integral pilot that centers perfectly for accurate hole alignment and consistent countersinking. Its threaded shank provides a secure fit and reliable depth control, and with a 3\/32\" pilot diameter and 100° countersink angle, it delivers repeatable, burr-free finishes. Designed to work with microstop cages, this countersink is ideal for high-accuracy aerospace, automotive, and precision engineering applications.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eIntegrated Pilot for Accurate Alignment\u003c\/b\u003e: Built-in pilot guides the tool for centered, repeatable countersinks, reducing misalignment and rework.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThreaded Shank for Secure Fit and Depth Control\u003c\/b\u003e: The threaded connection ensures a stable mount on microstop cages, delivering consistent countersink depth with every operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTight-Tolerance Pilot Diameter\u003c\/b\u003e: Pilot diameter held to −0.0005\" to −0.0015\", enabling precise alignment and reliable, high-precision results across demanding assemblies.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis countersink is designed to streamline your workflow: expect faster setup, fewer rejects due to misalignment, and consistently clean countersinks that meet stringent quality standards. The combination of a precise 3-flute cut, integral pilot, and tight tolerances translates to improved part quality, reduced downtime, and dependable performance in high-precision machining environments.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Robert Charles","offers":[{"title":"Default Title","offer_id":43418546536526,"sku":"SUNF3\/32-100-1\/2","price":33.18,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/Piloted_Microstop_Countersinks_e0fbdf00-1ae1-4c5e-9938-ee843c0f58ba.png?v=1770028368"},{"product_id":"sunf1-8-100-1-2","title":"Robert Charles Piloted Microstop Countersink - 3 Flute - Integral Pilot - Threaded Shank - 1\/8 Pilot Diameter - 100°","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Robert Charles Piloted Microstop Countersink is a precision tool designed for engineers, machinists, and precision shops. It features a 3-flute cutting design and an integral pilot, delivering accurate hole alignment and consistent countersinking for demanding aerospace, automotive, and precision engineering applications.\n\u003c\/p\u003e\n\u003cp\u003e\nDesigned for use with microstop cages and equipped with a threaded shank, this countersink provides secure fitment and reliable depth control across multiple setups. The pilot diameter is held to tight tolerances, ensuring each countersink starts true and finishes precisely where you need it.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003ePrecise 3‑Flute Countersink with 100° Angle\u003c\/b\u003e: Delivers efficient material removal and a clean, flush countersink with every pass, producing smooth finishes and dependable tool life on challenging materials.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIntegral Pilot for True Alignment\u003c\/b\u003e: Built‑in pilot centers each hole before countersinking, reducing wandering and delivering repeatable accuracy across parts and batches.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThreaded Shank with Microstop Cage Compatibility and Tight Pilot Tolerances\u003c\/b\u003e: Securely locks into your machine for reliable depth control; pilot diameter held to −0.0005\" to −0.0015\" to ensure high‑precision starting holes and consistent depths.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis combination supports consistent, high‑quality results in critical applications, helping you reduce setup time, minimize rework, and achieve repeatable countersinks across complex assemblies. Trustworthy performance from aerospace to precision automotive components translates to faster workflows, better part quality, and greater overall productivity.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Robert Charles","offers":[{"title":"Default Title","offer_id":43418546569294,"sku":"SUNF1\/8-100-1\/2","price":33.18,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/Piloted_Microstop_Countersinks_bb90578a-6f99-4ed4-a1a9-2a368693e7b2.png?v=1770028372"},{"product_id":"sunf5-32-100-1-2","title":"Robert Charles Piloted Microstop Countersink - 3 Flute - Integral Pilot - Threaded Shank - 5\/32 Pilot Diameter - 100°","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Robert Charles Piloted Microstop Countersink is a precision countersinking tool designed for exact hole alignment and repeatable depth control. It combines a built‑in integral pilot with a 3‑flute cutting design to deliver clean, concentric countersinks—ideal for aerospace, automotive, and other high‑precision applications. Designed for use with microstop cages, it features a threaded shank for secure fitment and reliable depth control. The tool offers a 100° countersink angle and a 5\/32\" pilot diameter to ensure consistent seating and excellent finish across parts.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eIntegral pilot with 3‑flute design\u003c\/b\u003e: Provides precise hole alignment and efficient material removal for a clean, concentric countersink.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThreaded shank for secure fit in microstop cages\u003c\/b\u003e: Locks the tool in place during use, delivering stable, repeatable depth control and minimizing movement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e5\/32\" pilot diameter with tight tolerance\u003c\/b\u003e: Pilot diameter held to −0.0005\" to −0.0015\", enabling high‑precision alignment and consistent countersinking for aerospace, automotive, and precision parts.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nBy delivering precise alignment, repeatable depth, and a robust interface with microstop equipment, this countersink helps you speed setups, reduce rework, and achieve consistent, high‑quality finishes across demanding production runs.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Robert Charles","offers":[{"title":"Default Title","offer_id":43418546864206,"sku":"SUNF5\/32-100-1\/2","price":33.18,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/Piloted_Microstop_Countersinks_4fdb1ebc-355e-48be-a662-3b98468d1e0a.png?v=1770028377"},{"product_id":"sunf3-16-100-1-2","title":"Robert Charles Piloted Microstop Countersink - 3 Flute - Integral Pilot - Threaded Shank - 3\/16 Pilot Diameter - 100°","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Robert Charles Piloted Microstop Countersink is a precision cutting tool designed for engineers, machinists, and technicians who need accurate countersinking with a built-in pilot. Its 3‑flute design delivers clean, repeatable countersinks and consistent hole alignment, helping you achieve high‑quality finishes with fewer passes.\n\u003c\/p\u003e\n\u003cp\u003e\nFeaturing a threaded shank for secure fitment and compatibility with microstop cages, this countersink provides reliable depth control in demanding applications. It uses a 3\/16 inch pilot diameter and a 100° countersink angle, with the pilot diameter held to tight tolerances of −0.0005\" to −0.0015\", making it ideal for aerospace, automotive, and precision engineering work.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003e3-Flute Cutting Design with 100° Countersink\u003c\/b\u003e: Delivers clean, consistent countersinks with smooth margins and reliable edge finishes, improving surface quality and repeatability across materials.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIntegral 3\/16 inch Pilot Diameter with Tight Tolerances\u003c\/b\u003e: Built-in pilot centers the countersink on the hole, delivering precise alignment; the pilot diameter is held to −0.0005\" to −0.0015\" for repeatable results.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThreaded Shank for Secure Fitment and Microstop Cage Compatibility\u003c\/b\u003e: Provides a secure mount in tools and, when paired with microstop cages, enables reliable depth control and repeatable countersink depths.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis countersink supports accurate hole preparation, reduces rework, and enhances consistency across assemblies. Its robust construction and precise tolerances give you confidence in high‑stakes aerospace, automotive, and precision‑engineering projects.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Robert Charles","offers":[{"title":"Default Title","offer_id":43418546896974,"sku":"SUNF3\/16-100-1\/2","price":33.18,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/Piloted_Microstop_Countersinks_fccac3e3-5e43-4a10-ad8c-a55d7e1d461a.png?v=1770028382"},{"product_id":"sunf7-32-100-1-2","title":"Robert Charles Piloted Microstop Countersink - 3 Flute - Integral Pilot - Threaded Shank - 7\/32 Pilot Diameter - 100°","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Robert Charles Piloted Microstop Countersink is a precision tool designed for high-accuracy countersinking with an integral pilot for exact hole alignment. It features a 3‑flute cutting design and a 100° countersink angle, with a threaded shank for secure fitment and reliable depth control. The pilot diameter is held to a tight tolerance of −0.0005\" to −0.0015\", ensuring repeatable, concentric results in aerospace, automotive, and other precision engineering applications.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003ePrecision 3‑Flute Cutting Design\u003c\/b\u003e: Delivers clean, burr-free countersinks with smooth advancement and reliable chip evacuation for consistent finishes on challenging materials.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIntegral Pilot for Exact Alignment\u003c\/b\u003e: The built‑in pilot centers the countersink on the hole, ensuring concentric countersinks and reducing rework in precision assemblies.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThreaded Shank for Secure Fit and Depth Control\u003c\/b\u003e: Locks into microstop cages for repeatable depth control and stable alignment across production runs, with a 7\/32\" pilot diameter and a 100° countersink angle.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis countersink delivers dependable, high‑precision results that streamline your workflow: quick setup with a secure, repeatable fit, fewer passes, and consistent finished holes suitable for aerospace components, automotive assemblies, and other precision machined parts. By maintaining tight pilot tolerances and reliable depth control, it reduces rework and downtime while delivering repeatable quality—every time you drill or countersink.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Robert Charles","offers":[{"title":"Default Title","offer_id":43418546929742,"sku":"SUNF7\/32-100-1\/2","price":33.18,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/Piloted_Microstop_Countersinks_44ed0c00-2211-4517-821f-3a302583ecc4.png?v=1770028386"},{"product_id":"sunf1-4-100-1-2","title":"Robert Charles Piloted Microstop Countersink - 3 Flute - Integral Pilot - Threaded Shank - 1\/4 Pilot Diameter - 100°","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Robert Charles Piloted Microstop Countersink is a precision 3‑flute cutter with an integral pilot that guides every hole for accurate alignment and consistent countersinking. It’s tailored for aerospace, automotive, and precision engineering applications where every countersunk surface matters.\n\u003c\/p\u003e \u003cp\u003e\nWith a threaded shank for a secure, slip‑free fit and reliable depth control, this countersink pairs with microstop cages to reproduce the same depth across multiple holes. The pilot diameter is tightly controlled at −0.0005\" to −0.0015\", ensuring repeatable, high‑accuracy results even on challenging materials.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eIntegral Pilot for Accurate Alignment\u003c\/b\u003e: Keeps the countersink centered for consistent seating and reduced rework.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e3‑Flute Design for Clean Countersinking\u003c\/b\u003e: Delivers smooth finishes and balanced chip evacuation for repeatable results.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThreaded Shank with Secure Fitment and Depth Control\u003c\/b\u003e: Provides a stable, repeatable depth when used with microstop cages, enhancing workflow reliability.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis tool enables faster setup, tighter tolerances, and dependable performance in critical assemblies. By combining a precise pilot with secure threading and compatible depth control, it supports high‑quality countersinking where consistency and precision are non‑negotiable.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Robert Charles","offers":[{"title":"Default Title","offer_id":43418546962510,"sku":"SUNF1\/4-100-1\/2","price":33.18,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/Piloted_Microstop_Countersinks_b62db3a2-167f-4eb1-b20f-a30f8838dbea.png?v=1770028391"},{"product_id":"d2-38-90-10","title":"Robert Charles Piloted Microstop Countersink - Removable Pilot - Threaded Shank - 3\/32 Pilot Dia - 2.3mm Pilot Shank Dia - 90°","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Robert Charles Piloted Microstop Countersink – Removable Pilot – Threaded Shank is a precision tool designed for controlled countersinking with repeatable depth. Its removable pilot and threaded shank give you flexibility across hole sizes and secure alignment in microstop cages.\n\u003c\/p\u003e\n\u003cp\u003e\nBuilt for aerospace, engineering, and precision assembly, it delivers clean, uniform finishes and reliable performance across a range of materials.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eRemovable 3\/32 in Pilot\u003c\/b\u003e: Quickly tailor hole size and depth by swapping pilots without changing the tool, reducing setup time and downtime while preserving precise alignment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThreaded Shank for Secure Microstop Cage Fit\u003c\/b\u003e: A threaded shank ensures a secure, repeatable connection to compatible microstop cages, delivering stable operation and consistent countersinks across multiple parts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e90° Countersink Geometry with Precise Pilot Diameters\u003c\/b\u003e: The 90° countersink angle paired with a 3\/32 in pilot diameter and a 2.3 mm pilot shank diameter provides consistent depth, clean finishes, and reliable results across materials.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis countersink is built for durability and long, dependable service in demanding workflows. By combining a removable pilot with a rugged threaded shank, it supports fast setup, precise depth control, and repeatable performance—helping you achieve professional finishes with confidence in aerospace, engineering, and precision assembly environments.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Robert Charles","offers":[{"title":"Default Title","offer_id":43418547028046,"sku":"D2.38-90-10","price":47.4,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/Piloted_Microstop_Countersinks_45778e1b-743b-45ba-b593-3054003adb81.png?v=1770028395"},{"product_id":"d3-17-90-10","title":"Robert Charles Piloted Microstop Countersink - Removable Pilot - Threaded Shank - 1\/8 Pilot Dia - 2.5mm Pilot Shank Dia - 90°","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Robert Charles Piloted Microstop Countersink – Removable Pilot – Threaded Shank is a precision countersink designed for highly accurate, repeatable countersinking. It features a 90° cutting angle with a 1\/8\" pilot diameter and a 2.5 mm pilot shank diameter, making it ideal for aerospace, engineering, and precision assembly applications where control and finish matter. A removable pilot lets you swap sizes quickly to match different hole requirements without changing the tool body, while the threaded shank secures into compatible microstop cages for stable, repeatable performance.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eRemovable Pilot for Flexible Size Changes\u003c\/b\u003e: Swap pilots quickly to cover different hole sizes without swapping the entire tool, saving time and reducing handling while preserving alignment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThreaded Shank for Secure Microstop Cage Fit\u003c\/b\u003e: The robust threaded connection locks into compatible microstop cages, delivering stable guidance and repeatable depth in demanding production runs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e90° Countersink Design for Clean, Consistent Finishes\u003c\/b\u003e: Creates uniform chamfers across metals and composites, promoting burr-free surfaces and high-quality assembly results.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nWith this tool, you gain reliable depth control and repeatable results across parts and batches. The removable pilot enables quick size changes without tool changes, while the secure threaded shank keeps the countersink aligned in microstop cages for consistent performance through long production runs. Built for durability, it supports high-precision workflows in aerospace, engineering, and precision assembly environments, helping you achieve clean finishes and reliable, repeatable results.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Robert Charles","offers":[{"title":"Default Title","offer_id":43418547060814,"sku":"D3.17-90-10","price":47.4,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/Piloted_Microstop_Countersinks_82af7c26-3f9f-4665-b2cc-7cdafd0f474b.png?v=1770028400"},{"product_id":"d3-96-90-10","title":"Robert Charles Piloted Microstop Countersink - Removable Pilot - Threaded Shank - 5\/32 Pilot Dia - 3.5mm Pilot Shank Dia - 90°","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Robert Charles Piloted Microstop Countersink – Removable Pilot – Threaded Shank is a precision cutting tool designed for highly accurate countersinking with controlled depth and repeatable results. The 90° countersink angle delivers a clean, uniform chamfer in a single pass, making it ideal for aerospace, engineering, and precision assembly work. The tool features a removable pilot for flexible sizing and a threaded shank that ensures a secure fit into compatible microstop cages, preserving alignment during operation. It is designed around a 5\/32 inch pilot diameter and a 3.5 mm pilot shank diameter to accommodate common hole sizes while maintaining exacting accuracy.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eRemovable Pilot for Flexible Sizing\u003c\/b\u003e: Swap pilots quickly to match different hole sizes without removing the countersink from the setup, reducing downtime and simplifying tool changes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThreaded Shank for Secure, Repeatable Fit\u003c\/b\u003e: Threaded engagement with microstop cages provides stable alignment and minimizes runout, even in demanding machining environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e90° Countersink Finish for Clean, Consistent Chamfers\u003c\/b\u003e: Delivers uniform depth and a smooth chamfer across materials, improving first-pass quality and reducing post-processing steps.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis countersink is built for durability and consistent performance in aerospace, precision engineering, and high-assembly workflows. The removable pilot and threaded shank design translate to faster setups, reliable repeatability, and long tool life, helping you achieve precise, repeatable results with confidence across a range of materials and applications.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Robert Charles","offers":[{"title":"Default Title","offer_id":43418547093582,"sku":"D3.96-90-10","price":47.4,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/Piloted_Microstop_Countersinks_790d7f27-2f7f-4f76-b94b-9ef3e69f60db.png?v=1770028404"},{"product_id":"d4-76-90-10","title":"Robert Charles Piloted Microstop Countersink - Removable Pilot - Threaded Shank - 3\/16 Pilot Dia - 3.5mm Pilot Shank Dia - 90°","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Robert Charles Piloted Microstop Countersink – Removable Pilot – Threaded Shank is a precision countersinking tool designed for highly accurate depth control and repeatable results in demanding assemblies. It features a removable pilot (3\/16 in diameter) and a 3.5 mm pilot shank, paired with a 90° countersink geometry to deliver clean, flush finishes across a variety of materials. The threaded shank provides a secure, stable fit into compatible microstop cages, making it a reliable choice for aerospace, engineering, and precision manufacturing work.\n\u003c\/p\u003e \u003cp\u003e\nRemovable pilot technology lets you swap pilots to match different hole sizes without sacrificing alignment or stability, minimizing downtime and expanding your setup options. The threaded shank ensures repeated, precise seating in microstop cages, supporting consistent depth control and repeatable results across multiple jobs.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eRemovable pilot for flexible hole sizing\u003c\/b\u003e: quick pilot changes enable use across different hole diameters without retooling, reducing setup time and increasing versatility.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThreaded shank for secure, repeatable fit\u003c\/b\u003e: a robust connection into compatible microstop cages delivers reliable alignment and consistent countersink depth.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e90° countersink for clean finishes\u003c\/b\u003e: delivers smooth, planed-like surfaces with uniform depth control, ideal for aerospace, engineering, and precision assembly tasks.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis countersink is built for durability and steady performance, helping you streamline workflows, achieve predictable results, and maintain high-quality finishes in every project.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Robert Charles","offers":[{"title":"Default Title","offer_id":43418547126350,"sku":"D4.76-90-10","price":47.4,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/Piloted_Microstop_Countersinks_7d338f36-10ca-44f4-988c-64e0f0be6ec9.png?v=1770028409"},{"product_id":"d4-76-90-14","title":"Robert Charles Piloted Microstop Countersink - Removable Pilot - Threaded Shank - 3\/16 Pilot Dia - 4mm Pilot Shank Dia - 90°","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Robert Charles Piloted Microstop Countersink – Removable Pilot – Threaded Shank is a precision countersinking solution built for engineers, machinists, and technicians who demand consistent depth control and clean finishes. With a 90° countersink angle, it delivers accurate chamfers and flush edges across a variety of materials, making it ideal for aerospace, precision assembly, and high-tidelity manufacturing work. The removable pilot adds true flexibility, allowing quick changes between hole sizes without sacrificing alignment or stability.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eRemovable Pilot for Flexible Hole Sizing\u003c\/b\u003e: Swap pilots quickly to match different hole diameters (pilot diameter 3\/16 in) without removing the tool, enabling fast changeovers and reduced non-productive downtime.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThreaded Shank for Secure Microstop Cage Fit\u003c\/b\u003e: The threaded shank mates reliably with compatible microstop cages, delivering repeatable depth control and stable alignment for consistent results.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e90° Countersink Geometry for Clean, Consistent Finishes\u003c\/b\u003e: Precisely shapes chamfers with controlled depth, producing smooth, uniform finishes across metals and non-metals and minimizing rework.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nDesigned for durability and dependable performance, this countersink supports tight tolerances and repeatable results in demanding applications. Its robust construction and secure mounting help you maintain a steady workflow, improve edge quality, and achieve reliable, high-quality assemblies from part to part.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Robert Charles","offers":[{"title":"Default Title","offer_id":43418547159118,"sku":"D4.76-90-14","price":59.25,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/Piloted_Microstop_Countersinks_02cbdaa4-f921-40b0-a673-8b8c053069b8.png?v=1770028414"},{"product_id":"d6-35-90-14","title":"Robert Charles Piloted Microstop Countersink - Removable Pilot - Threaded Shank - 1\/4 Pilot Dia - 4mm Pilot Shank Dia - 90°","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Robert Charles Piloted Microstop Countersink – Removable Pilot – Threaded Shank is a precision countersinking tool designed for accurate depth control and repeatable chamfers. Its removable pilot lets you swap into different hole sizes quickly without removing the body, preserving alignment and stability during every pass.\n\u003c\/p\u003e \u003cp\u003e\nWith a 1\/4 inch pilot diameter and a 4 mm pilot shank diameter, this tool delivers versatile hole sizing and reliable performance across materials. Engineered for aerospace, precision engineering, and demanding assembly work, its threaded shank provides a secure fit into compatible microstop cages, delivering consistent finishes across metals and composites with minimal drift.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eRemovable pilot for flexible hole sizes\u003c\/b\u003e: Swap pilots rapidly to match a range of hole diameters, reducing tool change time while maintaining precise alignment for every countersink.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThreaded shank for secure, repeatable seating\u003c\/b\u003e: Locks firmly into microstop cages, minimizing runout and ensuring consistent depth and position across multiple parts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e90° cutting angle with precision ground flutes\u003c\/b\u003e: Delivers clean, uniform chamfers and smooth surfaces, producing burr-free finishes across a variety of materials.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis piloted countersink helps you streamline workflows, cut down rework, and achieve reliable, high-quality results in critical assemblies. With its interchangeable pilot and robust threading, it’s a dependable choice for technicians who demand accuracy, repeatability, and durability from every countersinking operation.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Robert Charles","offers":[{"title":"Default Title","offer_id":43418547191886,"sku":"D6.35-90-14","price":59.25,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/Piloted_Microstop_Countersinks_947b5ba8-82c5-43e6-aaeb-61e8f34cb91f.png?v=1770028418"},{"product_id":"d7-94-90-17","title":"Robert Charles Piloted Microstop Countersink - Removable Pilot - Threaded Shank - 5\/16 Pilot Dia - 5mm Pilot Shank Dia - 90°","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Robert Charles Piloted Microstop Countersink – Removable Pilot – Threaded Shank is a precision countersinking tool engineered for highly accurate depth control and repeatable results in aerospace, engineering, and precision assembly. It features a removable pilot and a threaded shank for easy pilot replacement and a secure, alignment-focused fit, with a 5\/16-inch pilot diameter and a 5 mm pilot shank diameter to accommodate multiple hole sizes while maintaining strict alignment.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eRemovable Pilot for Flexible, Fast Tooling\u003c\/b\u003e: Swap pilots quickly to fit different hole sizes without removing the tool from the machine, keeping alignment consistent and reducing downtime.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThreaded Shank for Secure, Repeatable Alignment\u003c\/b\u003e: The threaded connection into compatible microstop cages provides a stable, slip‑free setup for repeatable countersink depth across multiple parts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e90° Countersink with Durable Construction\u003c\/b\u003e: Designed for clean, uniform chamfers across a variety of materials, delivering consistent finishes and long tool life in demanding applications.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis countersink is built to support tight tolerances and reliable performance across aerospace, engineering, and precision assembly workflows. The combination of a removable pilot, secure threaded shank, and robust 90° geometry helps you reduce setup time, minimize rework, and achieve dependable, high-quality finishes every run.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Robert Charles","offers":[{"title":"Default Title","offer_id":43418547224654,"sku":"D7.94-90-17","price":74.26,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/Piloted_Microstop_Countersinks_674f3bb4-ad9f-4974-a920-8a3bcbef013b.png?v=1770028423"},{"product_id":"d9-52-90-21","title":"Robert Charles Piloted Microstop Countersink - Removable Pilot - Threaded Shank - 3\/8 Pilot Dia - 5mm Pilot Shank Dia - 90°","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Robert Charles Piloted Microstop Countersink with Removable Pilot and Threaded Shank is a precision cutting tool designed for highly accurate countersinking where depth control and repeatability matter. Designed for aerospace, engineering, and precision assembly, its removable pilot lets you swap sizes quickly while maintaining alignment, and the threaded shank provides a secure, reliable fit into compatible microstop cages for dependable operation at a 90° countersink angle with a 3\/8 in pilot diameter and a 5 mm pilot shank diameter.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eRemovable Pilot for Flexible Hole Sizing\u003c\/b\u003e: Easily swap pilots to fit different hole sizes and keep depth control consistent across jobs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSecure Threaded Shank for Reliable Fit\u003c\/b\u003e: Threads lock the tool into microstop cages, reducing slippage and preserving depth accuracy during cutting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e90° Countersink with Durable Construction\u003c\/b\u003e: Precise 90° angle delivers clean, uniform countersinks across a variety of materials with long-lasting performance.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nWith its combination of quick pilot changes, secured mounting, and precise depth control, this countersink helps you streamline workflows, reduce rework, and achieve repeatable, professional finishes in aerospace, engineering, and precision assembly tasks. The tool’s reliability and depth consistency support faster setups and higher confidence in results across a variety of materials.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Robert Charles","offers":[{"title":"Default Title","offer_id":43418547257422,"sku":"D9.52-90-21","price":79.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/Piloted_Microstop_Countersinks_0e1514e7-be58-4a29-93f6-938144bf8bdc.png?v=1770028428"},{"product_id":"d2-38-100-10","title":"Robert Charles Piloted Microstop Countersink - Removable Pilot - Threaded Shank - 3\/32 Pilot Dia - 2mm Pilot Shank Dia - 100°","description":"\u003cdiv\u003e\n\u003cp\u003eThe Robert Charles Piloted Microstop Countersink – Removable Pilot – Threaded Shank is a precision countersinking tool designed for highly accurate depth control and repeatable finishes. Its removable pilot and threaded shank provide quick size changes without losing alignment, while the secure connection to compatible microstop cages ensures stability during every cut. This makes it a dependable choice for aerospace, engineering, and precision assembly applications.\u003c\/p\u003e \u003cp\u003eDesigned for versatility, this countersink features a 3\/32\" pilot diameter and a 2 mm pilot shank diameter with a 100° countersink angle. It delivers clean, uniform countersinks across a variety of materials, maintaining tight tolerances over long runs and reducing the need for rework.\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eRemovable Pilot for Quick Size Changes\u003c\/b\u003e: Swap pilots in seconds to accommodate different hole sizes without re-aligning the setup, minimizing downtime and keeping production moving smoothly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThreaded Shank for Secure, Repeatable Cage Fit\u003c\/b\u003e: The threaded interface locks firmly into microstop cages for stable alignment and consistent depth control across multiple parts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e100° Countersink with Precision Geometry\u003c\/b\u003e: Delivers clean, flush finishes with smooth edges and reduced chipping on metals and composites alike, even in demanding applications.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWith its removable pilot, secure threaded connection, and precise 100° profile, this countersink enhances workflow efficiency, reduces set-up and rework time, and delivers reliable, repeatable results across high-volume production and precision assemblies. Trustworthy construction and compatible design give you confidence to tackle tight tolerances and complex parts with each job.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Robert Charles","offers":[{"title":"Default Title","offer_id":43418547290190,"sku":"D2.38-100-10","price":39.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/Piloted_Microstop_Countersinks_1e800def-78cd-480b-af78-3ae33a0b4786.png?v=1770028432"},{"product_id":"d3-17-100-10","title":"Robert Charles Piloted Microstop Countersink - Removable Pilot - Threaded Shank - 1\/8 Pilot Dia - 2.5mm Pilot Shank Dia - 100°","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Robert Charles Piloted Microstop Countersink with Removable Pilot and Threaded Shank is a precision cutting tool designed for accurate countersinking with repeatable depth control. Built for aerospace, engineering, and precision assembly, it delivers clean, flush finishes while maintaining strict alignment during every pass. It features a removable pilot for quick replacement across hole sizes, a threaded shank for secure attachment, a 1\/8\" pilot diameter, a 2.5 mm pilot shank diameter, and a 100° countersink angle.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eRemovable Pilot for Flexible Hole Sizing\u003c\/b\u003e: Quickly swap pilots to match different hole diameters without sacrificing alignment, reducing setup time and downtime while preserving precise depth control.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThreaded Shank for Secure Microstop Cage Fit\u003c\/b\u003e: The threaded connection provides a dependable, vibration-resistant fit into compatible microstop cages for repeatable depth and reliable operation in production runs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e100° Piloted Countersink with Clean, Consistent Finish\u003c\/b\u003e: The 100° angle paired with a precision pilot delivers uniform countersinks across multiple materials, producing smooth surfaces and predictable joint bottoms.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis countersink is built for durability and long-term performance, so you can trust it for demanding jobs in aerospace, electronics, or precision furniture assembly. With its removable pilot and robust threading, it supports efficient, repeatable workflows and reduces rework, helping you achieve consistent results project after project.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Robert Charles","offers":[{"title":"Default Title","offer_id":43418547322958,"sku":"D3.17-100-10","price":39.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/Piloted_Microstop_Countersinks_a0276860-8930-48d1-b260-1769137a3906.png?v=1770028437"},{"product_id":"d3-96-100-10","title":"Robert Charles Piloted Microstop Countersink - Removable Pilot - Threaded Shank - 5\/32 Pilot Dia - 3.5mm Pilot Shank Dia - 100°","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Robert Charles Piloted Microstop Countersink – Removable Pilot – Threaded Shank is designed for highly accurate countersinking where precise depth and repeatability are critical. It features a removable pilot and a threaded shank for quick pilot changes and secure, repeatable performance in aerospace, engineering, and precision assembly applications. Pilot diameter: 5\/32 inch; pilot shank diameter: 3.5 mm; countersink angle: 100°.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eRemovable Pilot for Flexible Hole Sizing\u003c\/b\u003e: Swap pilots quickly to accommodate different hole sizes without changing the overall tool, reducing setup time and keeping countersinking alignment consistent.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSecure Threaded Shank for Reliable Fit\u003c\/b\u003e: The threaded interface locks firmly into compatible microstop cages, delivering stable, repeatable depth control and minimizing drift during operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e100° Countersink Geometry for Clean Finishes\u003c\/b\u003e: Precisely engineered 100° angle produces uniform, flush countersinks across a range of materials with minimal finishing work.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis combination of removable pilot versatility, secure fit, and precise geometry helps you streamline workflows, cut rework, and achieve reliable, professional results from batch to batch. With repeatable depths and consistent edge quality, you can trust it for demanding assemblies in aerospace, engineering, and precision manufacturing.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Robert Charles","offers":[{"title":"Default Title","offer_id":43418547355726,"sku":"D3.96-100-10","price":39.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/Piloted_Microstop_Countersinks_eb1d7915-9531-41f2-9fea-10308e6e73bc.png?v=1770028441"},{"product_id":"d4-76-100-10","title":"Robert Charles Piloted Microstop Countersink - Removable Pilot - Threaded Shank - 3\/16 Pilot Dia - 3.5mm Pilot Shank Dia - 100°","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Robert Charles Piloted Microstop Countersink with a removable pilot and threaded shank is built for highly accurate, repeatable countersinking across a range of materials. It’s ideal for aerospace, engineering, and precision assembly where precise depth control and a clean finish matter.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eRemovable Pilot for Flexible Hole Sizing\u003c\/b\u003e: Easily swap pilots to accommodate different hole sizes without removing the tool from the machine, reducing setup time and preserving precise alignment for repeatable countersinks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThreaded Shank for Secure Microstop Fit\u003c\/b\u003e: The threaded connection secures the countersink in compatible microstop cages, delivering stable, drift-free operation and consistent depth in every cut.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e100° Countersink Angle with Standard Pilot Sizes\u003c\/b\u003e: Produces smooth, uniform chamfers in a variety of materials, using a 3\/16 in pilot diameter and a 3.5 mm pilot shank for broad compatibility and reliable performance.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis combination of precise geometry, adjustable pilot, and robust mounting makes it easier to achieve professional-looking chamfers on every part, with reduced downtime and long service life in demanding environments. Engineers and technicians can rely on consistent results, faster setups, and fewer reworks across aerospace components, fixtures, and assemblies.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Robert Charles","offers":[{"title":"Default Title","offer_id":43418547421262,"sku":"D4.76-100-10","price":39.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/Piloted_Microstop_Countersinks_999cf352-f046-4bc9-9e1c-0673994c3e46.png?v=1770028446"},{"product_id":"d4-76-100-14","title":"Robert Charles Piloted Microstop Countersink - Removable Pilot - Threaded Shank - 3\/16 Pilot Dia - 4mm Pilot Shank Dia - 100°","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Robert Charles Piloted Microstop Countersink – Removable Pilot – Threaded Shank is built for precise, repeatable countersinking with strict depth control. Featuring a 3\/16 in. pilot diameter and a 4 mm shank diameter, the removable pilot lets you quickly swap sizes for different holes while maintaining alignment, and the threaded shank ensures a secure fit into compatible microstop cages for reliable performance in aerospace, engineering, and precision assembly.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eRemovable Pilot (3\/16 in. dia)\u003c\/b\u003e: Swap pilots quickly to adapt to different hole sizes without removing the countersink, preserving depth accuracy and reducing downtime.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThreaded Shank (4 mm dia) for secure cage fit\u003c\/b\u003e: The threaded engagement delivers a stable, repeatable depth and precise alignment when mounted in compatible microstop cages, even in high-speed production.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePrecise 100° countersink\u003c\/b\u003e: Delivers clean, flush finishes with minimal chatter across a range of materials, supporting consistent results and efficient finishing.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis countersink supports reliable, repeatable results across aerospace, automotive, and precision assembly projects. The removable pilot minimizes downtime when changing hole sizes, while the secure threaded shank maintains alignment under load for consistent depth and quality. Built for durability and long tool life, it helps streamline workflows, reduce rework, and improve first-pass finish across aluminum, steel, and composite materials.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Robert Charles","offers":[{"title":"Default Title","offer_id":43418547454030,"sku":"D4.76-100-14","price":50.56,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/Piloted_Microstop_Countersinks_7df9355e-1bae-4081-8dfb-30fcecf04815.png?v=1770028451"},{"product_id":"d6-35-100-14","title":"Robert Charles Piloted Microstop Countersink - Removable Pilot - Threaded Shank - 1\/4 Pilot Dia - 4mm Pilot Shank Dia - 100°","description":"\u003cdiv\u003e\n\u003cp\u003eThe Robert Charles Piloted Microstop Countersink is a precision cutting tool designed for highly accurate countersinking with controlled depth and repeatability. It features a removable pilot and a threaded shank, with a 1\/4\" pilot diameter and a 4mm pilot shank diameter, delivering clean, uniform finishes across a range of materials. This tool is ideal for aerospace, engineering, and precision assembly where depth control and repeatable results matter.\u003c\/p\u003e \u003cp\u003eSwap pilots to match various hole sizes quickly while preserving excellent alignment and stability during operation. The 100° countersink angle provides a balanced approach to material removal and surface quality, and the threaded shank ensures a secure, reliable fit into compatible microstop cages for dependable performance across tasks.\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eRemovable Pilot for Flexible Hole Sizing\u003c\/b\u003e: The pilot can be swapped to accommodate different hole sizes without tools or replacing the entire countersink, enabling fast setup and consistent depth control across jobs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSecure Threaded Shank for Reliable Fit\u003c\/b\u003e: The threaded shank locks into compatible microstop cages and holders, providing repeatable depths and reduced tool wobble during countersinking.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePrecise 100° Countersink with Durable Construction\u003c\/b\u003e: Delivers clean, uniform countersinks with smooth cuts and long edge life, suitable for a wide range of materials from aluminum to steel.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eIn practice, you gain faster changeovers, fewer tool changes, and consistent, high-quality countersinks that reduce rework and reject rates. The durable build and easy maintenance translate to longer tool life and reliable performance across demanding applications in aerospace, engineering, and precision assembly.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Robert Charles","offers":[{"title":"Default Title","offer_id":43418547486798,"sku":"D6.35-100-14","price":50.56,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/Piloted_Microstop_Countersinks_a339cfae-c425-48a4-adb7-4fbe6e6ced61.png?v=1770028456"},{"product_id":"d7-94-100-17","title":"Robert Charles Piloted Microstop Countersink - Removable Pilot - Threaded Shank - 5\/16 Pilot Dia - 5mm Pilot Shank Dia - 100°","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Robert Charles Piloted Microstop Countersink – Removable Pilot – Threaded Shank delivers highly accurate, repeatable countersinking with precise depth control. Built for aerospace, engineering, and precision assembly, its removable pilot and threaded shank provide flexible sizing and dependable alignment across a range of hole sizes and materials.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eRemovable pilot for quick size changes\u003c\/b\u003e: Swap pilots in seconds to fit different hole sizes without removing the tool body, reducing setup time and maintaining consistent depth every run.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThreaded shank for secure microstop integration\u003c\/b\u003e: Delivers a tight, repeatable fit in compatible microstop cages, minimizing runout and ensuring reliable, repeatable countersinks in busy production environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e100° countersink geometry for clean, uniform finishes\u003c\/b\u003e: Produces smooth, burr-free chamfers across a variety of materials with consistent depth control and edge quality.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nDesigned for durability and consistent performance, this countersink is a dependable choice for demanding applications. Its 5\/16 inch pilot diameter and 5 mm pilot shank diameter support a range of common hole sizes while maintaining precise alignment with the tool body. Use it to speed up setup, improve surface finish, and achieve repeatable results from part to part.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Robert Charles","offers":[{"title":"Default Title","offer_id":43418547519566,"sku":"D7.94-100-17","price":66.36,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/Piloted_Microstop_Countersinks_17be0bb2-81aa-4d3e-b09d-93533374c530.png?v=1770028460"},{"product_id":"d9-52-100-21","title":"Robert Charles Piloted Microstop Countersink - Removable Pilot - Threaded Shank - 3\/8 Pilot Dia - 5mm Pilot Shank Dia - 100°","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Robert Charles Piloted Microstop Countersink – Removable Pilot – Threaded Shank is a precision countersinking tool built for highly accurate depth control and repeatable results. It features a removable pilot for quick size changes without swapping the entire tool, and a secure threaded shank that fits into compatible microstop cages for stable, reliable performance. With a 3\/8 in pilot diameter and a 5 mm pilot shank diameter, plus a 100° countersink angle, it delivers clean, uniform finishes across a variety of materials—ideal for aerospace, engineering, and precision assembly applications.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eRemovable Pilot for Quick Size Changes\u003c\/b\u003e: Switch between hole sizes without removing the tool, preserving alignment and reducing changeover time in high-mix workflows.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSecure Threaded Shank for Stable Use\u003c\/b\u003e: Threads into compatible microstop cages for a dependable fit, minimizing runout and vibration for repeatable results.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e100° Countersink for Clean, Repeatable Finishes\u003c\/b\u003e: Delivers smooth, flush countersinks across different materials with consistent depth control and surface quality.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nUsing this piloted countersink helps you achieve predictable, high-quality finishes with less rework and downtime. The removable pilot and threaded shank streamline setup in busy shops, while the precise 100° angle and robust construction deliver reliable performance across aerospace, engineering, and precision-assembly tasks. Built for durability, it maintains consistent results project after project, helping you complete jobs faster with confidence.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Robert Charles","offers":[{"title":"Default Title","offer_id":43418547552334,"sku":"D9.52-100-21","price":72.68,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/Piloted_Microstop_Countersinks_2546361b-b99e-49c0-8bf2-ed14b125b5d8.png?v=1770028465"},{"product_id":"d2-38-120-10","title":"Robert Charles Piloted Microstop Countersink - Removable Pilot - Threaded Shank - 3\/32 Pilot Dia - 2mm Pilot Shank Dia - 120°","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Robert Charles Piloted Microstop Countersink – Removable Pilot – Threaded Shank is a precision countersinking tool designed for highly accurate depth control and repeatable results. It’s ideal for aerospace, engineering, and precision assembly where clean, consistent countersinks are essential.\n\u003c\/p\u003e \u003cp\u003e\nFeaturing a removable pilot for quick size changes and a threaded shank that securely fits compatible microstop cages, this tool maintains precise alignment and stable performance across different hole sizes. It uses a 3\/32 in. pilot diameter and a 2 mm pilot shank diameter and incorporates a 120° countersink angle for clean seating and uniform finishes.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eRemovable Pilot for Flexible Hole Sizing\u003c\/b\u003e: Easily swap pilots to match hole sizes without changing the entire tool, saving setup time and maintaining precise alignment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThreaded Shank for Secure, Repeatable Mounting\u003c\/b\u003e: Screws into compatible microstop cages to deliver a wobble-free fit, improving depth control and repeatability across parts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e120° Countersink for Clean, Uniform Finishes\u003c\/b\u003e: Precisely angled finish that produces smooth, burr-free countersinks with consistent depth in a range of materials.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis combination of removable pilot, secure threaded connection, and precise 120° countersink angle helps you streamline workflows, reduce rework, and achieve repeatable, professional results across aerospace components, instrument housings, and precision assemblies. By enabling quick pilot changes, reliable mounting, and clean finishes, this countersink supports faster setups, consistent results, and reduced downtime in demanding manufacturing environments.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Robert Charles","offers":[{"title":"Default Title","offer_id":43418547585102,"sku":"D2.38-120-10","price":47.4,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/Piloted_Microstop_Countersinks_3b305483-2198-4eb3-a5f6-a7093ab5abb4.png?v=1770028470"},{"product_id":"d3-17-120-10","title":"Robert Charles Piloted Microstop Countersink - Removable Pilot - Threaded Shank - 1\/8 Pilot Dia - 2.5mm Pilot Shank Dia - 120°","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Robert Charles Piloted Microstop Countersink – Removable Pilot – Threaded Shank is engineered for highly accurate, controlled countersinking where depth and repeatability matter most. Its clean, precise cuts ensure smooth, uniform finishes across a range of materials, making it a reliable choice for demanding fabrication and assembly work.\n\u003c\/p\u003e \u003cp\u003e\nIdeal for aerospace, engineering, precision assembly, and busy workshops, this countersink offers a removable pilot for quick size changes and flexible use with different hole sizes. The threaded shank provides a secure, stable fit into compatible microstop cages, helping you maintain alignment and consistency from part to part.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eRemovable pilot for flexible sizing\u003c\/b\u003e: Easily swap pilots to match hole sizes without changing the tool, preserving alignment and depth control for quick, repeatable setups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThreaded shank for secure, repeatable seating\u003c\/b\u003e: Locks into microstop cages with a snug, vibration-free engagement, delivering consistent performance and reducing runout.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePrecise 120° countersink with defined pilot sizing\u003c\/b\u003e: Uses a 1\/8\\\" pilot diameter and 2.5 mm pilot shank diameter to produce clean, uniform countersinks across materials and thicknesses.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis combination of removable pilot versatility, secure threading, and proven 120° geometry helps you speed up setup, reduce rework, and achieve professional-grade finishes with every project. Built for durability, it stands up to demanding precision work in aerospace, engineering, and high-accuracy assembly, delivering dependable results project after project.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Robert Charles","offers":[{"title":"Default Title","offer_id":43418547650638,"sku":"D3.17-120-10","price":47.4,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/Piloted_Microstop_Countersinks_49eb7c08-9e0a-4812-bc0e-5f61ccc9d665.png?v=1770028474"},{"product_id":"d3-96-120-10","title":"Robert Charles Piloted Microstop Countersink - Removable Pilot - Threaded Shank - 5\/32 Pilot Dia - 3.5mm Pilot Shank Dia - 120°","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Robert Charles Piloted Microstop Countersink – Removable Pilot – Threaded Shank is a precision countersinking tool engineered for accurate depth control and repeatable finishes. Its compact, robust design makes it ideal for aerospace, engineering, and precision assembly applications where consistent countersink depth matters. The tool features a removable pilot for quick size changes without losing alignment, and a 120° countersink angle that delivers clean, flush results across a variety of materials.\n\u003c\/p\u003e \u003cp\u003e\nPilot diameter: 5\/32\" with a 3.5 mm pilot shank diameter ensures flexible use across hole sizes while keeping the tool precisely aligned for each operation.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eRemovable Pilot for Flexible Hole Sizing\u003c\/b\u003e: Swap pilots quickly to cover different hole sizes without changing tools, while maintaining exact alignment for consistent countersink depth.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThreaded Shank for Secure Microstop Integration\u003c\/b\u003e: Tight, reliable fit into compatible microstop cages reduces runout and supports repeatable depth control throughout production runs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e120° Countersink Geometry for Clean, Uniform Finishes\u003c\/b\u003e: Delivers smooth, burr-free countersinks with consistent depth across materials, reducing rework and improving surface quality.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nDesigned for durability and dependable performance, this countersink helps streamline workflows, shorten setup times, and produce professional results batch after batch. Its removable pilot and secure threaded connection make it a trusted choice for demanding, precision-driven tasks where every hole matters.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Robert Charles","offers":[{"title":"Default Title","offer_id":43418547683406,"sku":"D3.96-120-10","price":47.4,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/Piloted_Microstop_Countersinks_ac328efe-0d8f-453c-b678-aeaa3219b365.png?v=1770028479"},{"product_id":"d4-76-120-10","title":"Robert Charles Piloted Microstop Countersink - Removable Pilot - Threaded Shank - 3\/16 Pilot Dia - 3.5mm Pilot Shank Dia - 120°","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Robert Charles Piloted Microstop Countersink is a precision tool engineered for highly accurate countersinking with repeatable depth and finish. Its piloted design keeps the countersink perfectly centered, making it ideal for aerospace, engineering, and precision assembly where consistency matters. With a removable pilot and a threaded shank, you can quickly adapt to different hole sizes without sacrificing alignment.\n\u003c\/p\u003e \u003cp\u003e\nDesigned for durability and reliable performance, the tool features a replaceable pilot with a 3\/16 in diameter and a 3.5 mm pilot shank diameter, plus a 120° countersink angle. The threaded shank provides a secure, stable fit into compatible microstop cages, delivering clean, uniform finishes across a variety of materials.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eRemovable Pilot for Quick Size Changes\u003c\/b\u003e: Swap pilots easily to match different hole sizes while maintaining precise depth and alignment, reducing tool-change downtime.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSecure Threaded Shank for Stable, Repeatable Setup\u003c\/b\u003e: A tight, twist-resistant connection to microstop cages ensures consistent positioning and repeatable countersinks across multiple parts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePrecise 120° Countersink with Durable Construction\u003c\/b\u003e: Delivers clean, uniform chamfers and finishes, built to withstand demanding use in a range of materials.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis countersink supports efficient workflows, helping you reduce rework, shorten setup times, and achieve reliable results from prototypes to high-volume production. Choose a tool designed for precision, longevity, and dependable performance in aerospace, engineering, and precision assembly tasks.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Robert Charles","offers":[{"title":"Default Title","offer_id":43418547716174,"sku":"D4.76-120-10","price":47.4,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/Piloted_Microstop_Countersinks_925b80e4-769e-4b3c-821a-2af069403d63.png?v=1770028484"}],"url":"https:\/\/www.protool-ltd.co.uk\/collections\/microstop-piloted-countersinks.oembed?page=2","provider":"Protool Precision Tools","version":"1.0","type":"link"}