Omega’s BT40 ER Collet Chuck is a precision tool holder designed for BT40 spindle systems, delivering secure ER25 tool clamping at high speeds for reliable, repeatable machining.

• Compatibility: BT40 spindle systems with Form AD/B interface for standardized tool mounting and dependable performance.
• Collet Size: ER25 collet compatible with a wide range of end mills and cutters, ensuring a tight, consistent grip.
• Speed Range: 15,000–25,000 RPM capability to suit high-speed milling and precision drilling tasks.
• Precision: G2.5 precision (with G6.3 characteristics) for excellent tool concentricity and minimal runout, improving cut quality.
• Gauge Length: 100 mm gauge length provides balanced rigidity and predictable tool engagement during aggressive machining.

Designed for the demands of precision milling and high-speed operations, this BT40 ER Collet Chuck minimizes runout and vibration, helping you achieve cleaner surfaces, tighter tolerances, and longer tool life. The ER25 gripping system simplifies tool changes while maintaining a secure hold under demanding feeds and speeds. Ideal for workshop prototyping, mold finishing, and light to medium production where repeatable accuracy matters.