The BT40 Slim Shrink Fit Chuck from Omega Products is a compact, high-precision tool holder designed for BT40 spindles. It features a 4 mm clamping diameter and a 90 mm gauge length, delivering secure tool retention even in tight work envelopes.

Engineered for high-precision machining with a slim profile that improves accessibility, this chuck is manufactured to BT MAS403 (JIS 6339) standards and balanced to G2.5 @ 25,000 RPM for stable, vibration-free performance at high speeds. The 3-degree taper and Form AD/B ensure reliable seating and repeatable accuracy.

• Slim BT40 Design for Easy Accessibility: Compact profile improves accessibility in crowded machine spaces and enables faster tool changes, reducing setup time and downtime.
• Industry-Standard BT MAS403 / JIS 6339 with 3° Taper, Form AD/B: Provides consistent clamping strength and rigid seating, ensuring repeatable accuracy and easy interchange with standard tooling.
• G2.5 Balance at 25,000 RPM: Precise balance minimizes vibration at high speeds, delivering smoother cuts, better surface finish, and longer tool life.

This shrink-fit chuck delivers secure, repeatable clamping for small-diameter tools at high RPMs, enhancing cutting performance and workflow efficiency. Its compact design frees up space in tight setups, while adherence to BT MAS403/JIS 6339 and precise G2.5 balance translate to reliable performance, minimized runout, and reduced maintenance over time.