The Omega BT40 Hydraulic Expansion Chuck HC20S is a secure, high-performance tool holder designed for BT40 spindle systems. With a 72.5 mm gauge length and Form AD interface, it fits BT40 setups precisely while providing reliable tool clamping at high speeds.

Engineered for speeds up to 25,000 RPM, its hydraulic expansion mechanism enables fast, repeatable tool changes and a strong, consistent grip that minimizes vibration for improved cutting performance.

• Hydraulic Expansion for Fast Tool Changes: The hydraulic mechanism enables quick, repeatable tool changes with even clamping pressure, reducing downtime and ensuring repeatable seating every cycle.
• G2.5 Precision for Concentric Results: Tight runout and excellent concentricity deliver consistent machining accuracy, reducing scrap and improving surface finish on every pass.
• Rugged Design for High-Speed Reliability: Built to withstand demanding BT40 applications up to 25,000 RPM, with strong clamping force that reduces chatter and extends tool life under heavy cuts.

This BT40 hydraulic expansion chuck helps you streamline your workflow by enabling rapid, repeatable tool changes, while delivering precise grip that reduces vibration during high-speed operations. With a 25,000 RPM capability and G2.5 precision, you’ll see improved consistency, fewer scrapped parts, and smoother finishes in daily machining tasks. Its robust construction is designed for longevity in demanding machining environments, making it a dependable choice for busy shops and production floors.