The Omega ER40 Collet Set is a complete 23-piece collection designed for engineers, machinists, and hobbyists who demand dependable toolholding for precision milling and drilling. With sizes spanning 4 mm to 26 mm, this standard-precision kit covers a broad range of common shank diameters, helping you lock in accuracy across a variety of projects.

Housed in a rugged storage case with precise foam inlays, the set keeps each collet secure and easy to grab, so you can switch sizes quickly and keep your workspace organized.

• Wide size range (4–26 mm, 23 pieces): Includes a full spectrum of ER40 collets so you have the right grip for most typical machining tasks without sourcing individual sizes.
• 10 micron run-out precision: Delivers tighter tolerance on held tools, resulting in more accurate cuts and improved surface finish.
• Protective storage case with foam inlays: Secure, organized, and portable—each collet stays in place and ready for use, reducing search time and drop risk.

This set helps you work more efficiently by reducing setup time, improving part-to-part consistency, and delivering reliable results across a wide range of milling and drilling applications. With durable storage and precise toolholding, you can complete projects faster and with greater confidence.