The Omega BT40 Slim Shrink Fit Chuck is a compact, high-precision toolholding solution designed for BT40 spindles. Its slim profile improves accessibility in crowded machines, making tool changes quicker and safer without sacrificing rigidity. It features a 3 mm clamping diameter and a 120 mm gauge length to securely hold small-diameter tools while maintaining exacting concentricity.

Manufactured to BT MAS403 (JIS 6339) standards, this chuck is balanced for smooth operation at high speeds, specifically G2.5 at 25,000 RPM. With a 3-degree taper and Form AD/B, it delivers consistent, stable performance even under demanding cutting conditions.

• Slim, accessible design: Enables easier tool changes and better clearance in tight spindle envelopes, reducing setup time and maintaining workflow momentum.
• High-speed balance for stability: Balanced to G2.5 at 25,000 RPM to minimize vibration, protect tool life, and ensure repeatable finishes at top speeds.
• Rigid shrink-fit clamping (BT40, Form AD/B): Precise 3-degree taper with standardized construction provides uniform, reliable grip for 3 mm tooling and consistent results at high loads.

This chuck helps you streamline production, improve cut quality, and extend tool life by delivering dependable tool retention and fast, repeatable setup in demanding machining environments.