Omega's BT40 Hydraulic Expansion Chuck (HC12S) is a secure tool-holding solution designed for BT40 spindle systems. Built for high-speed machining, it provides reliable gripping and repeatable seating to keep production moving smoothly.

With a maximum speed rating of 25,000 RPM and a G2.5 precision rating, the chuck delivers minimal runout and excellent concentricity for consistent, accurate machining results. The hydraulic expansion mechanism enables quick, tool changes, boosting productivity while reducing vibration and chatter. Designed for Form AD/B + Cool and a 58 mm gauge length, it supports stable tool seating and coolant-enabled operation in demanding environments.

• Hydraulic expansion for fast, tool-change efficiency: Quick, repeatable tool seating with a secure grip that lowers setup time and minimizes vibration during cutting.
• G2.5 precision for tight runout and concentricity: Ensures accurate tool engagement and consistent part quality across high-precision applications.
• BT40 compatibility with Form AD/B + Cool (58 mm gauge length): Specifically matched to BT40 spindles, coolant-capable, and engineered for stable seating and durability in tough workflows.

This BT40 hydraulic expansion chuck is built to endure demanding machining operations, delivering reliable performance, extended tool life, and confident operation across a wide range of tooling and applications.