The Omega Products ER Collet Extension with Castle Nut (UM) and Straight Shank is a durable ER20 extension that adds 100 mm of reach to your collet setup, enabling longer workpieces to be machined with accuracy. Designed for engineers, machinists, and hobbyists alike, it expands your capabilities while preserving alignment and stability. The castle nut delivers a secure, adjustable connection, and the straight shank ensures easy insertion into a wide range of tool holders and setups.

• Secure Castle Nut Connection: Provides a reliable, adjustable grip that lets you tighten or loosen the extension as needed, ensuring a stable, repeatable clamping force during milling or drilling.
• Easy, Versatile Straight Shank Mounting: The straight shank fits into most standard tool holders and setups, enabling quick, straightforward installation and consistent alignment with minimal setup effort.
• Generous 100 mm Reach: Extends reach to accommodate longer workpieces, increasing machining versatility while preserving rigidity and accuracy.

With the Omega ER Collet Extension, you gain expanded capability, streamlined setups, and consistent results across a wider range of applications. Its durable construction and compatibility with ER20 systems help you complete longer jobs more efficiently, improve workflow, and maintain high precision without sacrificing stability. This accessory is a practical, reliable upgrade for any shop that relies on ER collets.