Omega Products ER40 Collet Coolant Sealed Standard Precision - 10 Micron Run-Out -19mm

Omega's ER40 Collet Coolant Sealed Standard Precision is a reliable toolholding solution for ER40 spindle setups. It delivers exceptional concentricity with run-out under 10 microns, enabling precise, repeatable finishes across jobs.

With a practical clamping range of 3–26 mm, it accommodates a wide variety of round shank cutting tools while keeping coolant contained at the joint. Newer versions feature a nose design without a rubber seal to simplify maintenance, while the clever non-overlapping slot arrangement prevents coolant from leaking at the center.

• Coolant-sealed design with non-overlapping slots: The longitudinal slots do not overlap at the centre, which prevents coolant from escaping and helps keep your work area cleaner and your spindle protected.
• Sub-10 μm run-out for consistent precision: Delivers tight, repeatable accuracies that support clean finishes and longer tool life across multiple parts.
• 3–26 mm clamping range with round-shank compatibility (new nose design): Works with a broad range of round tools; maintain the seal by using round shanks with no clamping flats. Newer versions have no rubber nose seal for easier maintenance while preserving coolant containment.

This coolant-sealed ER40 collet system provides stable, true toolholding that reduces downtime, minimizes variance between parts, and supports efficient changeovers. It’s a practical, dependable choice for production runs, precision prototyping, and demanding machining tasks where consistent results matter.