Designed for precision work in CNC milling, routing, and other high-tolerance machining, the Omega ER40 Collet Set delivers consistent, repeatable clamping. This 23-piece collection spans from 4 mm to 26 mm, with a guaranteed 5 micron run-out to help you achieve accurate cuts and smoother finishes.

Whether you’re an engineer, machinist, tradesperson, or hobbyist, this compact, organized kit provides the versatility you need in a single solution. It’s also stored in a protective carry case with foam inserts to keep every collet safe, clean, and ready for fast tool changes.

• Ultra-precise 5 micron run-out: Maintains accurate tool grip and minimizes runout, helping you achieve tighter tolerances and cleaner surfaces with fewer rework cycles.
• Wide size range (4 mm to 26 mm): Covers the most common shank sizes in one set, reducing downtime from searching for the right collet and simplifying job setup.
• Durable ER40 construction with organized case: Precision-ground steel with a protective, foam-lined case keeps alignment stable and tools easy to transport and access.

This ER40 collet set is designed to improve reliability and workflow across a wide range of machining tasks. With consistent clamping, comprehensive size coverage, and convenient storage, you’ll experience faster setups, reduced tool changes, and more repeatable results on every project.