Introducing the Omega ER40 Collet with coolant-sealed design, engineered for high-precision machining in CNC mills and turning centers. This collet securely holds round-shank tooling across a wide clamping range and maintains stable, accurate performance under demanding conditions.

Key advantages include high-pressure cooling up to 120 bar with an integral metal seal, designed to minimize leaks and keep tooling temperatures under control. Newer versions omit the rubber seal on the nose to reduce maintenance. To preserve the seal, use only round shank tooling with no clamping flats; tooling with flats can render the seal ineffective.

• Ultra-precise run-out: Delivers consistently tight run-out for repeatable accuracy and smooth finishes at high speeds.
• High‑pressure coolant seal: Integral metal seal supports reliable cooling up to 120 bar, helping maintain cutting performance and extending tool life.
• Leak-free, round‑shank design: Longitudinal slots do not overlap at the centre to prevent coolant loss, and the seal relies on round shank tooling with no clamping flats for optimal performance.

This combination of precision, robust sealing, and a versatile clamping range helps reduce downtime, improve part quality, and streamline tool changes in demanding machining environments. Trustworthy, consistent results across setups mean you can focus on getting the job done right.