Omega Products ER25 Collet Coolant Sealed Ultra Precision - 10 Micron Run-Out - 11mm

Omega's ER25 Collet with coolant-sealed design is built for precision machining where consistent tool retention and effective cooling matter. It clamps 3–16 mm round tooling and uses an integral metal seal that’s designed to withstand high-pressure cooling up to 120 bar, helping your cuts stay cool and your tooling centered.

This sealed collet is ideal for CNC milling and turning in professional shops and serious hobbyist setups. The combination of tight run-out and robust coolant containment supports clean finishes, reduced tool wear, and reliable performance under demanding cutting conditions.

• Ultra-precise run-out: Delivers run-out under 10 μm to ensure tight tolerances, smoother cutting, and longer tool life with every pass.
• High-pressure coolant sealing: Integral metal seal withstands up to 120 bar of coolant pressure, preventing leaks and protecting spindle bearings; newer versions feature a metal nose seal for enhanced durability.
• Leak-safe, versatile clamping: Designed for 3–16 mm round tooling, with longitudinal slots that do not overlap at the center to prevent coolant loss; for best performance, use only round shank tools with no clamping flats, as flats render the seal ineffective.

In real-world production, this coolant-sealed ER25 collet translates to more consistent finishes, less downtime due to leaks or seal wear, and a dependable foundation for your precision work. It helps your workflow stay on track—from setup to final pass—delivering reliable results cycle after cycle.