Omega Products ER25 Collet Coolant Sealed Standard Precision - 10 Micron Run-Out -4mm

Omega ER25 Collet, coolant-sealed and built for standard precision tasks, delivers <10 μm run-out to help you achieve consistent finishes and tight tolerances in CNC milling, drilling, and light precision work. With a practical clamping range of 3–16 mm, it covers a wide variety of round shank tooling, making it a versatile choice for shops, jobbing mills, and hobbyists who need reliable performance without complex setup.

Newer versions feature a rubber-seal-free nose, reducing maintenance and potential seal wear while still providing dependable coolant containment. The collet’s non-overlapping longitudinal slots at the center help prevent coolant loss during operation, so you can work with confidence in demanding environments. For optimal sealing performance, use only round shank tooling with no clamping flats, as tooling with flats can compromise the seal and overall accuracy.

• Ultra-low run-out (< 10 μm): Delivers precise tool positioning for clean edges, tight tolerances, and repeatable results across production runs.
• Coolant-sealed design with non-overlapping slots: Helps keep coolant where it belongs and reduces the risk of leaks, enhancing reliability during heavy milling.
• Wide clamping range 3–16 mm and rubber-seal-free nose on newer versions: Offers broad tool compatibility with lower maintenance, supporting fast tool changes and consistent performance.

This collet is a dependable, professional-grade choice that supports efficient workflows, reduces rework from misfeeds or coolant leaks, and helps you maintain high-quality finishes across a range of common tools and applications.