{"product_id":"5855-1-8-90","title":"Robet Charles Imperial Piloted Countersink - 3 Flutes Integral Pilot Straight Shank - 1\/8 Pilot Diameter - 90° Inclusive Angle","description":"\u003cdiv\u003e\n\u003cp\u003eThe Robet Charles Imperial piloted countersink is engineered for precise, repeatable countersinking in precision machining applications. With a 3-flute cutting design and an integral pilot, it delivers accurate hole alignment, smooth cutting action, and reduced chatter. The 90° inclusive angle and a 1\/8\" pilot diameter make it a versatile choice for aerospace, automotive, and general engineering work that requires clean, square recesses.\u003c\/p\u003e \u003cp\u003eManufactured to strict tolerances, the pilot diameter is held to −0.0005\" to −0.0015\", delivering consistent, concentric results across parts and programs.\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eIntegral pilot for exact hole alignment\u003c\/b\u003e: Keeps countersink centered on the hole, reducing misalignment and ensuring repeatable depths in every part.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e3-flute design for smooth, efficient cutting\u003c\/b\u003e: Enables steady performance with better chip evacuation and less vibration and chatter during cuts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTight pilot-diameter tolerance\u003c\/b\u003e: Guarantees concentric countersinks with every cycle, delivering consistent recess quality across production runs.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWith the Robet Charles Imperial piloted countersink, you gain reliable, repeatable recess quality that enhances joint fit and overall part accuracy. The integral pilot reduces setup time and the risk of misalignment, while the 3-flute geometry and tight tolerances deliver smooth cutting and consistent depth control. This makes it a dependable choice for demanding environments like aerospace and automotive manufacturing, as well as precision prototyping and general engineering tasks—helping you finish parts faster with fewer reworks.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Robert Charles","offers":[{"title":"Default Title","offer_id":43418536902734,"sku":"5855-1\/8-90","price":27.65,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/Robert_Charles_Piloted_Countersink_6d85ba71-a1c1-4fa9-931e-0c4a0463cf53.png?v=1770027886","url":"https:\/\/www.protool-ltd.co.uk\/products\/5855-1-8-90","provider":"Protool Precision Tools","version":"1.0","type":"link"}