{"title":"Omega Products ER25 Collets Coolant Sealed Ultra Precision - 10 Micron Run-Out","description":"\u003cspan data-mce-fragment=\"1\"\u003eHigh Pressure Coolant Sealed Collets (\u0026lt;10μ accuracy) Integral Metal Seal for High Pressure Cooling - 120 bar Clamping Range 3-16mm our newer versions have no rubber seal on the nose. The longitudinal slots do not overlap at centre so preventing coolant loss. Do though please ensure you are using solely round shank tooling with no clamping flats to complete the seal – if you are using toolshanks with clamping flats it will render these collets ineffective.\u003c\/span\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/omega.png?v=1657700908\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/omega.png?v=1657700908\" data-mce-selected=\"1\"\u003e\u003c\/p\u003e","products":[{"product_id":"om33519","title":"Omega Products ER25 Collet Coolant Sealed Ultra Precision - 10 Micron Run-Out - 3mm","description":"\u003cdiv\u003e\n\u003cp\u003e\nOmega's ER25 Collet with coolant seal delivers ultra-precise toolholding for demanding milling applications. Designed for engineers, machinists, and hobbyists alike, it provides reliable high-pressure coolant delivery and sub-10 μm run-out to keep cutting tools centered and finishes consistent. To preserve the seal, use only round-shank tooling with no clamping flats; tools with flats can render the collet ineffective.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eUltra-precise run-out\u003c\/b\u003e: Achieves run-out under 10 μm for tight tolerances, improved concentricity, and cleaner, more consistent surface finishes on every pass.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHigh-pressure coolant sealing\u003c\/b\u003e: Sealed integral metal design supports coolant up to 120 bar with non-overlapping longitudinal slots to prevent leaks; newer versions have no rubber seal on the nose for enhanced durability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eVersatile clamping range with round-shank compatibility\u003c\/b\u003e: 3–16 mm tooling range provides broad flexibility while maintaining seal integrity when paired with round-shank tools (avoid clamping flats to keep performance optimal).\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis combination of precision, coolant efficiency, and versatile sizing helps you reduce downtime, achieve repeatable results across a wide range of milling tasks, and extend tool life by maintaining balanced, stable tool engagement under high-pressure cooling.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Omega","offers":[{"title":"Default Title","offer_id":40267215896654,"sku":"OM33519","price":23.14,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/er25sealedc_845a64aa-30fe-460d-870c-8ba45dc2163e.jpg?v=1692198923"},{"product_id":"om33520","title":"Omega Products ER25 Collet Coolant Sealed Ultra Precision - 10 Micron Run-Out - 4mm","description":"\u003cdiv\u003e\n\u003cp\u003e\nOmega ER25 Collet Coolant Sealed Ultra Precision is a high‑reliability toolholder designed for mills and demanding drilling applications where coolant pressure and precision matter. Built for engineers, technicians, and serious hobbyists, it delivers tight run-out and secure tool seating while efficiently delivering coolant to the cutting edge. With a 120 bar clamping capability and run-out under 10 microns, this collet helps you maintain accuracy and finish quality across tough jobs. Newer versions omit the rubber nose seal, relying on an integral metal seal and a non‑overlapping slot design to minimize coolant loss and improve durability.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eUltra-precise coolant-sealed performance\u003c\/b\u003e: Delivers sub‑10 μm run-out with the advantage of high‑pressure coolant up to 120 bar for cleaner cuts and consistent tool control at speed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLeak‑proof, durable seal design\u003c\/b\u003e: Features an integral metal seal and a non‑overlapping longitudinal slot arrangement that prevents coolant leakage, even under heavy cuts; newer versions have no rubber nose seal for increased reliability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWide clamping range with round‑shank compatibility\u003c\/b\u003e: Accepts 3–16 mm tool shanks within the ER25 interface and requires round shanks with no clamping flats to maintain the seal and performance; using tooling with flats will render the collet ineffective.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis combination translates into faster setup, fewer interruptions for coolant leakage, and repeatable results across multiple tools and jobs. The sealed design helps maintain coolant delivery exactly where it’s needed, supporting better chip evacuation and surface finishes while reducing downtime and rework. Ideal for precision milling, fine drilling, and any application where consistent grip and accurate geometry matter, this ER25 coolant-sealed collet is a dependable choice for professional shops and serious makers alike.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Omega","offers":[{"title":"Default Title","offer_id":40267215929422,"sku":"OM33520","price":23.14,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/er25sealedc_ebe8a571-65cf-4e30-b6a7-785eabe8fbbc.jpg?v=1692198927"},{"product_id":"om33521","title":"Omega Products ER25 Collet Coolant Sealed Ultra Precision - 10 Micron Run-Out - 5mm","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Omega ER25 Collet with sealed coolant delivers ultra-precise toolholding for high-speed milling. It supports 3–16 mm round shanks and achieves run-out under 10 microns, helping you achieve consistent finishes and longer tool life.\n\u003c\/p\u003e \u003cp\u003e\nDesigned for high-pressure coolant, its integral metal seal withstands up to 120 bar of coolant pressure. Newer versions have no rubber seal on the nose, and the longitudinal slots are arranged so they do not overlap at the center, reducing the risk of coolant loss. For optimal sealing, use only round-shank tooling with no clamping flats; tools with flats will render the seal ineffective.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eUltra-precise run-out (\u0026lt;10 μm)\u003c\/b\u003e: Ensures consistently accurate tool engagement and smooth finishes across parts, improving precision and repeatability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHigh-pressure coolant seal up to 120 bar\u003c\/b\u003e: Integral metal seal keeps coolant where it’s needed, reducing chip buildup and cooling loss during aggressive milling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSeal-friendly nose and tool-shank compatibility\u003c\/b\u003e: Non-overlapping longitudinal slots prevent coolant loss, and newer nose designs remove the rubber seal for simpler maintenance. To maintain the seal, use only round-shank tooling with no clamping flats; tooling with flats will render the collet ineffective.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nWith these design choices, you can rely on steady clamping across your 3–16 mm range, cut with confidence at high speeds, and keep coolant where it matters most. The result is reduced downtime for tool changes, better surface finishes, and predictable performance job after job, making it a dependable choice for CNC mills, engineers, and workshop environments.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Omega","offers":[{"title":"Default Title","offer_id":40267215962190,"sku":"OM33521","price":23.14,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/er25sealedc_22cc4d6e-e2fb-49e3-a0e9-c3e9a7d8d0f7.jpg?v=1692198931"},{"product_id":"om33522","title":"Omega Products ER25 Collet Coolant Sealed Ultra Precision - 10 Micron Run-Out - 6mm","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Omega ER25 Collet is a coolant-sealed, ultra-precision tool holder designed for CNC milling and precision machining. With an exceptional 10 μm run-out, it seats tooling with outstanding concentricity, helping you achieve consistently tight tolerances and smoother surface finishes across a wide range of materials.\n\u003c\/p\u003e\n\u003cp\u003e\nBuilt for heavy-duty use, this collet supports a broad clamping range of 3–16 mm and is engineered to work with high-pressure flood cooling up to 120 bar. Newer versions replace the nose rubber seal with a durable metal seal for longer life, and the slot geometry is designed so longitudinal slots do not overlap at the center, reducing coolant leakage. For optimal sealing, please use only round-shank tooling with no clamping flats; tooling with flats will render the seal ineffective.\n\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eUltra-precise run-out (≤10 μm)\u003c\/b\u003e: Delivers tight concentricity for accurate milling, better part tolerances, and superior finish between passes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHigh-pressure coolant sealed design (up to 120 bar)\u003c\/b\u003e: Integrated metal seal (newer versions) eliminates rubber nose wear, while non-overlapping slots minimize coolant loss for reliable flood cooling during demanding cuts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWide clamping range (3–16 mm) with round-shank tooling required\u003c\/b\u003e: Maximizes versatility and setup speed by accommodating a broad range of tools, while ensuring the seal works as intended when used with round shanks (no clamping flats).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\nIn practice, this collet helps you reduce rework, cut cycle times faster, and maintain consistent results across jobs. The combination of tight run-out, robust high-pressure cooling, and a durable seal delivers dependable performance in production environments and precise results in prototyping, giving you the confidence to push for better finishes and tighter tolerances with every job.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Omega","offers":[{"title":"Default Title","offer_id":40267215994958,"sku":"OM33522","price":23.14,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/er25sealedc_96412468-0bc6-40eb-91dc-7a12297bd3ea.jpg?v=1692198934"},{"product_id":"om33523","title":"Omega Products ER25 Collet Coolant Sealed Ultra Precision - 10 Micron Run-Out - 7mm","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Omega ER25 Collet Coolant Sealed Ultra Precision is a coolant-fed toolholding solution built for milling and precision machining. It achieves ultra-low run-out (\u0026lt;10 μm) and supports high-pressure coolant up to 120 bar, with a clamping range of 3–16 mm and a 7 mm shank size. Newer versions have no rubber seal on the nose, and the longitudinal slots are arranged to avoid overlap at the center to minimize coolant loss. For best results, use only round shank tooling with no clamping flats; tooling with flats will render the seal ineffective.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eUltra-precise run-out (\u0026lt;10 μm)\u003c\/b\u003e: Ensures consistent tool positioning for superior surface finish and tighter tolerances across batches.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHigh-pressure coolant seal (up to 120 bar)\u003c\/b\u003e: Integrated metal seal with non-overlapping slots minimizes coolant leakage and chip migration under flood cooling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBroad clamping range (3–16 mm) with 7 mm shank\u003c\/b\u003e: Versatile fit that covers common small-diameter tooling while maintaining stiffness and repeatable grip.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis combination of precision run-out, robust coolant containment, and versatile clamping range helps you streamline setups, reduce scrap, and speed cycles. The sealed design protects the spindle from coolant ingress, lowers chip packing around the nose, and delivers reliable performance even in demanding materials. With a durable ER25 interface and a focus on consistent grip, you can trust this collet to perform consistently across shifts and jobs, improving overall workflow and tool life.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Omega","offers":[{"title":"Default Title","offer_id":40267216027726,"sku":"OM33523","price":23.14,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/er25sealedc_37bca0d9-7961-456f-a1a8-5dc88bd4c495.jpg?v=1692198938"},{"product_id":"om33524","title":"Omega Products ER25 Collet Coolant Sealed Ultra Precision - 10 Micron Run-Out - 8mm","description":"\u003cdiv\u003e\n\u003cp\u003e\nOmega Products ER25 Collet Coolant Sealed Ultra Precision is a precision tool-holding solution designed for milling, drilling, and precision machining where coolant efficiency and tight tolerances matter. With run-out under 10 microns, it helps maintain accuracy across multiple passes and delivers consistent surface finishes. It clamps tooling in a 3–16 mm range, including common 8 mm shanks, making it versatile for demanding jobs.\n\u003c\/p\u003e \u003cp\u003e\nNewer versions feature a nose without a rubber seal, while the integral metal seal is built to handle high‑pressure cooling up to 120 bar. The design uses longitudinal slots that do not overlap at the center, preventing coolant loss and preserving coolant flow. For optimal seal performance, use only round shank tooling with no clamping flats; tools with flats can render these collets ineffective.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eUltra-precise run-out\u003c\/b\u003e: Delivers better than 10 μm run-out to improve part accuracy and surface finish over repeated cycles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHigh-pressure coolant sealed design\u003c\/b\u003e: Integral metal seal withstands coolant pressures up to 120 bar and minimizes leakage, with non-overlapping slots engineered to prevent coolant loss.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWide clamping range with round‑shank guidance\u003c\/b\u003e: Accepts tools from 3–16 mm (including 8 mm tooling); to maintain seal integrity, use only round shank tooling with no clamping flats, as flats will compromise performance.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis coolant-sealed ER25 collet provides reliable, repeatable tool holding for demanding machining tasks. By combining tight run-out control, robust coolant containment, and clear instructions for proper tooling, it helps improve workflow, reduce downtime, and deliver consistent results across production runs.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Omega","offers":[{"title":"Default Title","offer_id":40267216060494,"sku":"OM33524","price":23.14,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/er25sealedc_748a66eb-1cab-47e4-8b7b-1e40c63eef9d.jpg?v=1692198942"},{"product_id":"om33525","title":"Omega Products ER25 Collet Coolant Sealed Ultra Precision - 10 Micron Run-Out - 9mm","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Omega ER25 Collet with integrated high‑pressure coolant seal delivers exceptional precision and reliable coolant delivery for demanding milling, drilling, and routing tasks. This 9mm collet is designed for engineers, shop floor technicians, and hobbyists who need a secure grip on round-shank tooling and dependable coolant management, supporting tool sizes from 3–16 mm with a stable, repeatable clamping action.\n\u003c\/p\u003e \u003cp\u003e\nWith run-out accuracy better than 10 microns, you can achieve tight tolerances and superior surface finishes even on challenging materials. The newer versions feature a metal seal at the nose (no rubber seal) and non-overlapping longitudinal slots to prevent coolant loss at the center. To seal properly, ensure you are using round-shank tooling with no clamping flats—tools with flats will render the collet ineffective.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eUltra-precise run-out (\u0026lt; 10 μm)\u003c\/b\u003e: ensures outstanding concentricity for high-precision milling and cleaner, more accurate machining results.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHigh-pressure coolant seal up to 120 bar\u003c\/b\u003e: keeps coolant contained within the collet system, reducing leaks and downtime while enabling deeper pockets and tougher materials.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSealed nose design for reliable coolant containment\u003c\/b\u003e: newer versions use a metal seal (no rubber) with non-overlapping slots to prevent coolant loss; to maintain seal performance, use only round-shank tooling with no clamping flats.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis combination of ultra-precision run-out, robust coolant containment, and a compact 9mm form factor helps streamline setups, reduces downtime from leaks or tool chatter, and delivers repeatable results across a wide range of machining tasks. Ideal for shops aiming for consistent accuracy, efficient coolant management, and reliable tool retention in ER25 spindle systems, the Omega ER25 Collet is a dependable choice for both everyday and challenging manufacturing workloads.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Omega","offers":[{"title":"Default Title","offer_id":40267216093262,"sku":"OM33525","price":23.14,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/er25sealedc_eb5a86fd-eb05-44f2-befe-da26e82bf31f.jpg?v=1692198945"},{"product_id":"om33526","title":"Omega Products ER25 Collet Coolant Sealed Ultra Precision - 10 Micron Run-Out - 10mm","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Omega ER25 Collet with coolant seal delivers ultra-precise toolholding for demanding machining tasks. Built to withstand high-pressure coolant environments, it helps keep coolant and chips away from the spindle while maintaining tight tolerances for consistently accurate results. This makes it a reliable choice for high-speed milling, precision drilling, and applications where surface finish and reliability matter.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eUltra-precise run-out\u003c\/b\u003e: Delivers sub-10 μm accuracy to improve part tolerances, repeatability, and overall surface finish in every operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHigh-pressure coolant seal\u003c\/b\u003e: Integral metal seal supports coolant pressures up to 120 bar and, with non-overlapping longitudinal slots, minimizes coolant loss for cleaner, cooler, and more productive machining.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eVersatile 3–16 mm clamping range with proper tooling use\u003c\/b\u003e: ER25 interface provides a wide range of tooling options; newer nose designs reduce maintenance, and for optimal performance, use only round shank tooling with no clamping flats to preserve the seal.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis collet is built to keep your workflow smooth and dependable: precise tool retention, effective cooling under demanding conditions, and a design that minimizes leaks and downtime. Choose the Omega ER25 Collet for reliable performance and consistent results across a range of milling and drilling tasks.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Omega","offers":[{"title":"Default Title","offer_id":40267216126030,"sku":"OM33526","price":23.14,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/er25sealedc_7144a7f8-1cec-4481-a256-e617e00775d2.jpg?v=1692198949"},{"product_id":"om33527","title":"Omega Products ER25 Collet Coolant Sealed Ultra Precision - 10 Micron Run-Out - 11mm","description":"\u003cdiv\u003e\n\u003cp\u003e\nOmega's ER25 Collet with coolant-sealed design is built for precision machining where consistent tool retention and effective cooling matter. It clamps 3–16 mm round tooling and uses an integral metal seal that’s designed to withstand high-pressure cooling up to 120 bar, helping your cuts stay cool and your tooling centered.\n\u003c\/p\u003e \u003cp\u003e\nThis sealed collet is ideal for CNC milling and turning in professional shops and serious hobbyist setups. The combination of tight run-out and robust coolant containment supports clean finishes, reduced tool wear, and reliable performance under demanding cutting conditions.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eUltra-precise run-out\u003c\/b\u003e: Delivers run-out under 10 μm to ensure tight tolerances, smoother cutting, and longer tool life with every pass.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHigh-pressure coolant sealing\u003c\/b\u003e: Integral metal seal withstands up to 120 bar of coolant pressure, preventing leaks and protecting spindle bearings; newer versions feature a metal nose seal for enhanced durability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLeak-safe, versatile clamping\u003c\/b\u003e: Designed for 3–16 mm round tooling, with longitudinal slots that do not overlap at the center to prevent coolant loss; for best performance, use only round shank tools with no clamping flats, as flats render the seal ineffective.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nIn real-world production, this coolant-sealed ER25 collet translates to more consistent finishes, less downtime due to leaks or seal wear, and a dependable foundation for your precision work. It helps your workflow stay on track—from setup to final pass—delivering reliable results cycle after cycle.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Omega","offers":[{"title":"Default Title","offer_id":40267216191566,"sku":"OM33527","price":23.14,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/er25sealedc_d5eabbf7-e50b-455c-b395-6f12b470aff0.jpg?v=1692198953"},{"product_id":"om33528","title":"Omega Products ER25 Collet Coolant Sealed Ultra Precision - 10 Micron Run-Out - 12mm","description":"\u003cdiv\u003e\n\u003cp\u003e\nOmega ER25 Collet with coolant-sealed design delivers ultra-precise grip for high‑pressure machining. With run-out under 10 μm and a clamping range of 3–16 mm, it keeps tools centered and chips under control in demanding operations. The integral metal seal supports coolant pressures up to 120 bar, enhancing cooling efficiency and tool life. Note: newer versions have no rubber seal on the nose. For best results, use solely round shank tooling with no clamping flats to complete the seal; tooling with flats will render these collets ineffective.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eUltra-Precise Run-Out (\u0026lt;10 μm)\u003c\/b\u003e: Maintains exceptional accuracy across rotations, ensuring tight tolerance door-to-door performance and smoother surface finishes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHigh-Pressure Coolant Sealed up to 120 bar\u003c\/b\u003e: Integrated seal delivers reliable coolant delivery during demanding cuts, improving chip evacuation and extending tool life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eNon-Overlapping Longitudinal Slots\u003c\/b\u003e: Slot geometry prevents coolant loss at the center, delivering dependable sealing under pressure and reducing leakage-related downtime.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nDesigned for ER25 tooling systems, this collet family helps you maintain consistent results across long runs, streamline coolant management, and reduce tool-changing interruptions. Its robust metal-seal construction and precision grip support higher cutting speeds and tougher materials, making it a reliable choice for workshops ranging from hobbyists to professionals aiming for repeatable accuracy and cleaner finishes.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Omega","offers":[{"title":"Default Title","offer_id":40267216224334,"sku":"OM33528","price":23.14,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/er25sealedc_8097c644-68c4-414c-a34e-705cd3389c93.jpg?v=1692198957"},{"product_id":"om33529","title":"Omega Products ER25 Collet Coolant Sealed Ultra Precision - 10 Micron Run-Out - 13mm","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Omega ER25 Collet with coolant seal delivers ultra-precise toolholding for high-pressure milling. Engineered to maintain accuracy under demanding coolant flow, it helps you achieve tight tolerances and clean finishes even at high speeds.\n\u003c\/p\u003e \u003cp\u003e\nDesigned for the 13 mm model line, this collet is built to perform in busy machine shops and engineering environments that demand consistency. It supports a clamping range of 3–16 mm and is rated for coolant pressures up to 120 bar, delivering coolant right to the cutting edge for efficient chip control.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eUltra-precise, high-pressure coolant seal\u003c\/b\u003e: Keeps run-out under 10 μm and directs coolant up to 120 bar directly to the cutting edge, delivering repeatable accuracy and clean finishes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLeak-resistant, durable coolant design\u003c\/b\u003e: Longitudinal slots do not overlap at the center, preventing coolant loss; newer versions use a nose without a rubber seal to improve reliability and reduce wear under heavy coolant flow.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eVersatile clamping range with correct shank compatibility\u003c\/b\u003e: Clamps tools from 3–16 mm and requires round shank tooling with no clamping flats; using tools with flats will render the seal ineffective and compromise performance.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nWith these features, you gain consistent results, reduced downtime from tool changes, and better surface finishes thanks to stable, high-pressure cooling and precise toolholding. The sealed design minimizes coolant leakage, improving chip control and extending tool life, while the robust construction stands up to regular workshop use.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Omega","offers":[{"title":"Default Title","offer_id":40267216257102,"sku":"OM33529","price":23.14,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/er25sealedc_57458e54-fff4-4664-9de5-b9df90d9b66c.jpg?v=1692198960"},{"product_id":"om33530","title":"Omega Products ER25 Collet Coolant Sealed Ultra Precision - 10 Micron Run-Out - 14mm","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Omega ER25 Collet with High-Pressure Coolant Sealed Ultra Precision is a purpose-built toolholding solution for CNC milling and drilling where relentless cooling and tight tolerances matter. Designed for the ER25 family with a 14 mm size designation, it clamps tools in the 3–16 mm range and delivers run-out under 10 microns for consistently accurate results.\n\u003c\/p\u003e \u003cp\u003e\nBuilt for demanding machining environments, this collet features an integral metal seal and a capability for high-pressure coolant up to 120 bar. The design includes longitudinal slots that do not overlap at the center, reducing coolant leakage and helping maintain coolant delivery exactly where you need it. Newer versions use a robust metal seal on the nose (no rubber seal), enhancing durability in tough applications. To preserve the seal’s effectiveness, use only round shank tooling with no clamping flats; tools with flats can render the seal ineffective.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eHigh-Pressure Sealed Coolant Delivery\u003c\/b\u003e: Maintains reliable coolant delivery up to 120 bar with an integral metal seal, directing coolant precisely to the cutting edge and minimizing leaks thanks to the non-overlapping slot design.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eUltra-Low Run-Out\u003c\/b\u003e: Delivers run-out under 10 μm, helping achieve tighter tolerances, smoother finishes, and more repeatable results across the 3–16 mm tool range.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSlot Design \u0026amp; Shank Compatibility\u003c\/b\u003e: The non-overlapping longitudinal slots reduce coolant loss, while the seal integrity requires round shank tooling with no clamping flats to keep the system effective and durable.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis collet is designed to improve machining outcomes by providing consistent cooling, precise tool retention, and a robust build that stands up to high-pressure environments. By reducing coolant leakage, maintaining tight run-out, and offering a broad clamping range, it helps you shorten setup times, minimize-tool wear, and achieve reliable, repeatable results across a variety of jobs.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Omega","offers":[{"title":"Default Title","offer_id":40267216289870,"sku":"OM33530","price":23.14,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/er25sealedc_d75b54dd-0f5a-490b-8839-82ea8f9541bb.jpg?v=1692198965"},{"product_id":"om33531","title":"Omega Products ER25 Collet Coolant Sealed Ultra Precision - 10 Micron Run-Out - 15mm","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Omega ER25 Collet is a coolant-sealed toolholding solution designed for CNC milling and other precision machining tasks. It delivers ultra-precise clamping with reliable coolant delivery, making it a strong choice for engineers, tradespeople, and hobbyists who demand consistent results.\n\u003c\/p\u003e \u003cp\u003e\nKey specifications include an ultra-low run-out of under 10 μm and a high-pressure coolant capability up to 120 bar, with a clamping range of 3–16 mm. Newer versions use a metal seal on the nose (no rubber seal), enhancing durability in demanding shop environments.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eUltra-low run-out (\u0026lt;10 μm)\u003c\/b\u003e: ensures precise tool engagement and a smooth, repeatable surface finish across multiple passes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHigh-pressure coolant sealed design up to 120 bar\u003c\/b\u003e: integral metal seal minimizes coolant leakage and concentrates cooling at the cutting edge for improved performance and longer tool life. Newer versions have no rubber nose seal for increased durability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWide 3–16 mm clamping range with round-shank tooling requirement\u003c\/b\u003e: versatile for a broad range of tools; to maintain seal integrity, use only round shank tooling with no clamping flats—tools with flats can render the seal ineffective.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis combination of precision, sealed coolant performance, and flexible clamping makes the Omega ER25 Collet a reliable choice for a variety of milling tasks. It helps reduce downtime, improves consistency across productions, and supports cleaner finishes and longer tool life in demanding applications.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Omega","offers":[{"title":"Default Title","offer_id":40267218026574,"sku":"OM33531","price":23.14,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/er25sealedc_b96930bc-a8ab-47ee-87ad-f97041d2d072.jpg?v=1692198970"},{"product_id":"om33532","title":"Omega Products ER25 Collet Coolant Sealed Ultra Precision - 10 Micron Run-Out - 16mm","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Omega ER25 Collet with sealed high‑pressure coolant is a precision toolholding solution designed for professional shops, engineers, and hobbyists who require dependable cooling and ultra-accurate tool retention. It clamps tools from 3 mm to 16 mm with run-out under 10 microns, enabling repeatable, high‑quality milling and drilling results.\n\u003c\/p\u003e \u003cp\u003e\nNewer versions use an all‑metal seal with no rubber nose seal, delivering durable performance in tough coolant environments. The seal is rated for high‑pressure cooling up to 120 bar, ensuring reliable coolant delivery through the tool while maintaining rigid, precise clamping. The longitudinal slots are designed so they do not overlap at the centre, preventing coolant loss and preserving pressure during operation.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eUltra-precise run-out (\u0026lt;10 μm)\u003c\/b\u003e: Delivers highly repeatable tool paths, tighter tolerances, and smoother finishes across the 3–16 mm clamping range.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHigh-pressure coolant seal (up to 120 bar)\u003c\/b\u003e: Integral metal seal provides reliable cooling under demanding pressure; newer versions forego the nose rubber seal for improved durability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLeak‑resistant slot geometry\u003c\/b\u003e: Longitudinal slots do not overlap at the centre to prevent coolant loss; for best results, use only round shank tooling with no clamping flats to maintain a full seal.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis sealed ER25 collet supports efficient, high‑quality production by combining precise toolholding with robust coolant performance. It helps you reduce downtime from leaks, improve surface quality, and extend tool life, making it a reliable choice for demanding applications that require consistent results and efficient coolant management. Ensure you pair it with round shank tools (no clamping flats) to maintain optimal sealing and performance.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Omega","offers":[{"title":"Default Title","offer_id":40267218059342,"sku":"OM33532","price":23.14,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/er25sealedc_8cc5600a-8946-43d3-b7df-687a057ff43f.jpg?v=1692198974"}],"url":"https:\/\/www.protool-ltd.co.uk\/collections\/omega-products-er25-collets-coolant-sealed-ultra-precision-5-micron-run-out.oembed","provider":"Protool Precision Tools","version":"1.0","type":"link"}