The Omega BT40 Slim Shrink Fit Chuck is a precision toolholding solution designed for BT40 spindle machines. Its compact, slim profile improves accessibility in tight workspaces while delivering a secure, repeatable grip on cutting tools for cleaner, more accurate results.

Manufactured to BT MAS403 (JIS 6339) standards, this chuck features a 3-degree taper and Form AD/B for rigid, reliable performance. It is balanced to G2.5 at 25,000 RPM, ensuring stable operation in high-speed milling. With a 16 mm clamping diameter and 90 mm gauge length, it provides robust engagement and versatility for a range of tooling needs.

• Slim 16 mm clamping diameter: A compact grip size that fits into tight setups while delivering secure, repeatable tool retention for accurate milling and drilling.
• BT MAS403 (JIS 6339) compliant with 3° taper and Form AD/B: Built to exacting standards to ensure rigidity, consistent clamping force, and reliable alignment across demanding applications.
• G2.5 balance at 25,000 RPM with 90 mm gauge length: Precise balance and engagement length deliver smoother operation, reduced vibration, and stable cutting at high speeds.

This shrink-fit chuck supports faster, dependable tool changes with concentric holding and minimal runout, helping you maintain tight tolerances and high-quality finishes. The slim design reduces interference with adjacent tooling, enabling quicker setups and improved workflow in busy shops. Built to stringent BT MAS403/JIS 6339 standards, it offers repeatable performance across numerous cycles, giving you confidence in tool life, accuracy, and overall machining reliability.