Omega Products ER32 Collet Coolant Sealed Ultra Precision - 10 Micron Run-Out - 4mm

The Omega ER32 Collet with coolant sealing is a precision toolholding solution built for ER32 milling and drilling applications. Designed for engineers, machinists, and hobbyists who demand reliable coolant delivery and repeatable accuracy, this 4mm version delivers secure tool retention while delivering coolant directly to the cutting edge.

• Ultra-precise, sealed run-out: Delivers consistently <10 μm run-out with an integrated seal, helping maintain accurate tool positioning and finishing quality even under demanding cuts.
• High-pressure coolant performance: Supports coolant pressures up to 120 bar with a durable metal seal nose in newer versions (no rubber seal), improving longevity and leak resistance while enhancing heat removal.
• Leakage-resistant slot geometry: Longitudinal slots do not overlap at the centre to minimize coolant loss; for best results, use only round-shank tooling with no clamping flats to preserve the seal and performance.

This collet delivers reliable, repeatable results in tough machining environments. Its combination of ultra-precise run-out, high-pressure coolant capability, and smart seal geometry helps reduce downtime from leaks, extend tool life, and support consistent, high-quality finishes across a range of demanding applications.