The Omega BT40 ER Collet Chuck is built for BT40 spindle systems and ER25 tooling, delivering secure, precise toolholding for demanding CNC milling and drilling work. With a 70 mm gauge length and Form AD design, it ensures stable performance and repeatable results across a wide range of applications.

• BT40 interface: Designed to fit standard BT40 spindles for fast tool changes and reliable retention.
• ER25 collet: High-precision tool clamping for accurate, repeatable engagement with ER25 tooling.
• Gauge length: 70 mm gauge length provides balanced rigidity and predictable tool reach during cuts.
• Form AD: Form AD design ensures proper fit and alignment with BT40 toolholders for consistent seating.
• Maximum speed: Rated up to 20,000 RPM for high-speed milling, with strong performance at peak speed.
• Operating range: Suitable for a broad speed spectrum from 15,000 to 25,000 RPM to accommodate different materials and tooling setups.
• Concentricity and runout: G2.5 precision delivers tight concentricity and minimal runout, enhancing cutting quality and surface finish.

This chuck translates to tangible manufacturing benefits: reduced tool runout, improved surface finish, and more consistent part tolerances. The secure ER25 clamping minimizes chatter under heavy milling, while the sturdy BT40 interface supports reliable, repeatable tool changes in busy production environments. Ideal for shops prioritizing precision, durability, and efficiency in high-speed machining with ER25 tooling.