Omega ER40 Collet Coolant Sealed Ultra Precision is a high-performance tool holder accessory designed for milling operations that demand tight tolerances and reliable coolant management. It grips round shank tooling securely while directing coolant precisely where it’s needed, helping you maintain consistent accuracy and clean chip removal. Ideal for engineers, machine shops, tradespeople, and serious hobbyists, it’s built to keep your setup stable during demanding cuts.

• Ultra-precise run-out (<10 μm): Delivers repeatable accuracy and a superior surface finish by minimizing run-out, so your parts stay within tight tolerances even on demanding materials.
• High-pressure coolant seal: Integral metal seal design withstands up to 120 bar of clamping pressure and reduces coolant loss, keeping chips away from the cutting zone and extending tool life. Newer versions have no rubber seal on the nose for enhanced durability.
• Round-shank tooling compatibility: Engineered to seal properly with round shanks, not tooling with clamping flats; using flats can compromise the seal and performance, ensuring reliable operation when used as intended.

This collet setup is engineered to improve workflow by reducing maintenance interruptions, delivering consistent results across multiple tools, and enabling efficient high-pressure cooling in tough milling jobs. With its robust construction and precise tolerances, it helps you achieve dependable performance, lower downtime, and better overall machining quality.