Omega Products BT40 Slim Shrink Fit Chuck - G2.5 - 25,000RPM - 16mm Clamping Diameter - 120mm Gauge Length

The BT40 Slim Shrink Fit Chuck from Omega is engineered for high-precision machining with a compact design that improves accessibility in tight workzones. Manufactured to BT MAS403 (JIS 6339) standards, this chuck delivers superior clamping strength and rigidity for demanding milling applications.

With a 3-degree taper and Form AD/B, and balanced to G2.5 at 25,000 RPM, it offers exceptional performance and stability for high-speed operations. It features a 16 mm clamping diameter and a 120 mm gauge length, making it a versatile workholding solution for a wide range of tools.

• Slim, Accessible Design: The compact form reduces interference in crowded setups, enabling faster tool changes and easier access to the spindle for smoother, more efficient machining.
• Rigid, High-Precision Shrink-Fit Clamping: A 3-degree taper with Form AD/B and BT MAS403 alignment provides strong, repeatable grip and minimal runout, sustaining accuracy at up to 25,000 RPM.
• Standards-Compliant and Balanced at Speed: CNC-ready reliability thanks to BT MAS403 (JIS 6339) compliance and precise G2.5 balancing, ensuring stable performance with 16 mm clamping diameter and 120 mm gauge length.

Together, these features translate into faster setup, more consistent results, and reliable performance in high-speed milling. The slim design and robust shrink-fit grip help reduce downtime and tool wear, while the industry-standard construction supports long-term durability and predictable results across production runs. If you’re seeking a compact, high-speed toolholder that delivers repeatable accuracy and easy maintenance, this BT40 Slim Shrink Fit Chuck is a confident choice for modern machining cells.