Omega Products ER20 Collet Coolant Sealed Standard Precision - 10 Micron Run-Out -11mm

Omega ER20 Collet is a coolant-sealed, standard-precision tool holder designed for milling and drilling where precise tool retention and coolant management matter. It accepts round-shank tooling in the 3–13 mm range and delivers consistently low run-out for repeatable, high-quality finishes. To maintain sealing performance, use only round shank tooling with no clamping flats.

• Ultra-precise run-out: Delivers run-out under 10 μm, ensuring accurate cuts and smooth finishes across a range of materials.
• Wide clamping range for versatile tooling: Accepts round shanks from 3 to 13 mm, enabling fast tooling changes and broad applicability without swapping holders. Use only round shanks with no clamping flats to preserve the seal.
• Leak-resistant coolant design: Longitudinal slots do not overlap at the centre to prevent coolant loss; newer versions achieve sealing without a rubber nose seal, keeping your work area cleaner and tooling protected in wet environments.

This combination of tight grip, flexible tool compatibility, and reliable coolant containment helps you complete jobs with fewer interruptions, maintain tighter tolerances, and reduce cleanup time. Whether you're performing precision milling, drilling, or pocketing tasks, this ER20 collet delivers consistent performance and dependable long-term service in demanding shop conditions.