Omega Products ER25 Collet Coolant Sealed Ultra Precision - 10 Micron Run-Out - 12mm

Omega 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.

• Ultra-Precise Run-Out (<10 μm): Maintains exceptional accuracy across rotations, ensuring tight tolerance door-to-door performance and smoother surface finishes.
• High-Pressure Coolant Sealed up to 120 bar: Integrated seal delivers reliable coolant delivery during demanding cuts, improving chip evacuation and extending tool life.
• Non-Overlapping Longitudinal Slots: Slot geometry prevents coolant loss at the center, delivering dependable sealing under pressure and reducing leakage-related downtime.

Designed 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.