Omega Products BT40 Slim Shrink Fit Chuck - G2.5 - 25,000RPM - 6mm Clamping Diameter - 120mm Gauge Length

The Omega BT40 Slim Shrink Fit Chuck is a precision toolholding solution designed for BT40 spindle machines. Its slim profile improves accessibility in tight work envelopes, making tool changes faster and maintenance simpler while delivering repeatable, high-accuracy performance. With a 6 mm clamping diameter and 120 mm gauge length, this chuck balances compactness with a secure grip for small-diameter tools.

Manufactured to BT MAS403 (JIS 6339) standards, this shrink-fit chuck provides superior clamping strength and rigidity. Its 3-degree taper and Form AD/B design offer a secure, stable grip on tooling, while the 6 mm clamping diameter and 120 mm gauge length keep the setup compact and well-balanced. Balanced to G2.5 at 25,000 RPM, it delivers stable, high-speed performance essential for demanding milling and finishing work.

• Slim, accessible design for tight spaces: Enables easier tool changes and better reach in crowded machines, improving setup efficiency and reducing idle time.
• BT MAS403 (JIS 6339) compliant rigidity: Provides strong, repeatable clamping with a secure grip on tools, enhancing accuracy and reliability in every cut.
• High-speed stability at 25,000 RPM: G2.5-balanced performance minimizes vibration and chatter, supporting precise finishes and consistent results at top speeds.

By delivering precise, repeatable tool holding in a compact package, the BT40 Slim Shrink Fit Chuck helps you streamline setups, sustain high-quality finishes, and maintain confidence across a range of materials and applications. Its certified standards, robust clamping, and careful balance work together to enhance workflow, reduce rework, and support reliable production at speed.