Omega BT40 Slim Shrink Fit Chuck is a compact, high-precision toolholding solution designed for BT40 spindles. Its slim profile enhances accessibility in tight work envelopes while delivering strong clamping and rigidity for demanding milling, drilling, and finishing tasks.

With a 5 mm clamping diameter and a 120 mm gauge length, this chuck is engineered for stability at high speeds. It’s manufactured to BT MAS403 (JIS 6339) standards, features a 3-degree taper with Form AD/B, and is balanced to G2.5 @ 25,000 RPM for reliable performance in aggressive, high-speed machining.

• Slim, Compact Form Factor: Enables easier access in tight work zones and improves chip clearance, while maintaining rigidity and balance during high-speed machining.
• Precise 5 mm Shrink Fit Clamping: Provides a secure grip on small-diameter tooling with consistent hold, reducing runout and vibration up to 25,000 RPM.
• BT MAS403/JIS 6339-Approved Precision with Balanced Performance: Manufactured to standard with a 3-degree taper and Form AD/B, balanced to G2.5 at 25,000 RPM for stable, repeatable results.

This BT40 Slim Shrink Fit Chuck helps you streamline setups, improve accuracy, and extend tool life by delivering reliable clamping and steady performance at high speeds. Its compact form reduces interference, while its standards-based build and careful balance support consistent results across milling, drilling, and finishing tasks, helping you complete jobs faster with less downtime.