The Omega ER20 Collet Set is a standard sealed precision tool accessory designed for milling machines, CNC routers, and drill presses. This 11-piece set covers common shank diameters from 3 mm to 13 mm, ensuring you have the right collet on hand for most jobs.

With 10 micron run-out, this set delivers tight concentricity for accurate cuts and consistent finishes, reducing wear on tools and improving results. The included rigid, sealed case protects the collets from dust and damage and keeps them organized for quick access between tasks.

• Complete 11-piece ER20 range (3–13 mm): Covers the most frequently used sizes in one sealed set, enabling fast tool changes and reducing the need to source multiple sets.
• 10 micron run-out precision: Delivers tight concentricity for cleaner cuts, better surface finishes, and longer tool life across a variety of materials.
• Secure sealed case and organization: Sturdy, dust-sealed storage keeps each collet protected and easy to locate, enhancing transport durability and on-site setup speed.

This ER20 collet set helps you work more efficiently by providing reliable, accurate tool holding across a full range of sizes, reducing downtime and delivering consistent results with every job.