Omega Products ER25 Collet Coolant Sealed Ultra Precision - 10 Micron Run-Out - 13mm

The Omega ER25 Collet with coolant seal delivers ultra-precise toolholding for high-pressure milling. Engineered to maintain accuracy under demanding coolant flow, it helps you achieve tight tolerances and clean finishes even at high speeds.

Designed for the 13 mm model line, this collet is built to perform in busy machine shops and engineering environments that demand consistency. It supports a clamping range of 3–16 mm and is rated for coolant pressures up to 120 bar, delivering coolant right to the cutting edge for efficient chip control.

• Ultra-precise, high-pressure coolant seal: Keeps run-out under 10 μm and directs coolant up to 120 bar directly to the cutting edge, delivering repeatable accuracy and clean finishes.
• Leak-resistant, durable coolant design: Longitudinal slots do not overlap at the center, preventing coolant loss; newer versions use a nose without a rubber seal to improve reliability and reduce wear under heavy coolant flow.
• Versatile clamping range with correct shank compatibility: Clamps tools from 3–16 mm and requires round shank tooling with no clamping flats; using tools with flats will render the seal ineffective and compromise performance.

With these features, you gain consistent results, reduced downtime from tool changes, and better surface finishes thanks to stable, high-pressure cooling and precise toolholding. The sealed design minimizes coolant leakage, improving chip control and extending tool life, while the robust construction stands up to regular workshop use.