Omega's BT40 Hydraulic Expansion Chuck HC20S is a precision toolholding solution designed for BT40 spindle systems. Engineered for high-speed machining, its hydraulic expansion delivers secure grip and fast tool changes to keep your workflow moving up to 25,000 RPM.

With a G2.5 precision rating for minimal runout and a 72.5mm gauge length, it maintains excellent concentricity across a wide range of tooling. The Form AD/B size and coolant-ready design provide robust performance in demanding environments, helping you push for consistent, high-quality results.

• Hydraulic expansion for fast tool changes: The hydraulic mechanism enables quick clamping and release, reducing setup time between tools and boosting productivity.
• High-speed stability and precision: Delivers up to 25,000 RPM with G2.5 accuracy, ensuring tight runout control and balanced cutting for cleaner finishes.
• Rugged, coolant-ready construction: Built for durability with Form AD/B compatibility and coolant capability, providing long tool life and reliable performance in tough machining conditions.

This BT40 HC20S hydraulic expansion chuck helps you streamline workflows by enabling reliable, repeatable tool holding at high speeds, reducing vibration, and improving cut quality. The combination of rapid tool changes and a durable, coolant-ready build minimizes downtime and supports consistent, high-quality results across a wide range of applications, from precision milling to heavy-duty machining.