The BT40 ER Collet Chuck from Omega is a precision tool holder engineered for BT40 spindle systems, optimized to securely clamp ER25 tooling for reliable high-speed machining. Form AD mounting and a tight tolerance design deliver consistent performance across milling and drilling operations.

• Compatibility: BT40 spindle systems with Form AD mounting for secure, quick seating.
• Collet size: ER25-compatible collets support a wide range of small-diameter tooling.
• Speed range: 15,000–25,000 RPM for versatile performance across materials and operations.
• Precision: G2.5 and G6.3 ratings indicate excellent tool concentricity and minimal runout.
• Gauge length: 100 mm gauge length provides stable tool projection and balanced reach for longer tooling.
• Concentricity: Tight tolerances reduce wobble, improving cut quality and surface finish.
• Construction quality: Precision-machined body designed for dependable clamping in demanding environments.

This BT40 ER Collet Chuck enhances accuracy and repeatability in high-speed milling and drilling applications by delivering stable tool seating and superior concentricity with ER25 tooling. Ideal for shops that require consistent performance from BT40 tool holders, it helps maintain quality finishes, longer tool life, and efficient setup across a variety of projects.