Omega Products ER11 Collet Coolant Sealed Ultra Precision - 10 Micron Run-Out - 7mm

The Omega ER11 Collet with High-Pressure Coolant Seal is a precision tooling accessory designed for demanding milling and drilling tasks. It clamps 3–7 mm round shanks with ultra-tight run-out and a sealed design that keeps coolant precisely where it’s needed, helping you achieve accurate, repeatable results.

Designed for high-pressure flood coolant, this collet supports up to 120 bar and features an integral metal seal for durability. Newer versions use a rubber-free nose design, and the slot geometry is engineered to prevent coolant loss, ensuring consistent performance in busy production environments. To maintain the seal, use only round-shank tooling with no clamping flats; tooling with flats will render the seal ineffective.

• Ultra-precision run-out with high-pressure coolant seal: Delivers accuracy under 10 microns and supports high-pressure cooling up to 120 bar, ensuring tight tolerances and stable tool life.
• Rubber-free, metal-seal nose design: Newer nose design reduces wear and improves seal reliability under demanding conditions.
• Leak-prevention slot geometry and round-shank compatibility: Longitudinal slots do not overlap at the centre to prevent coolant loss; for the seal to work, use only round-shank tooling with no clamping flats (flats render the seal ineffective).

With this ER11 collet, you gain reliable coolant delivery, precise hole sizes, and longer tool life in high-demand operations. The sealed, high-pressure-capable design reduces downtime from leaks, delivers cleaner finishes, and provides predictable performance across various materials and workloads. By following the round-shank requirement and proper usage, you’ll improve workflow reliability and overall machining results.