The Omega Products BT40 ER Collet Chuck – Mini Type ER11 is a compact, high-precision tool holder engineered for BT40 spindle systems. Built for high-speed milling and micro-tooling, it delivers secure tool retention, outstanding concentricity, and quick tool changes in a lightweight form.

• BT40 Compatibility: Specifically designed for BT40 spindles to ensure accurate alignment and reliable clamping.
• Mini Type ER11 Design: Compact, low-profile body minimizes tool overhang for improved balance at high speeds.
• ER Collet System: Enables fast tool changes and flexible tooling with ER11 tooling range.
• High-Speed Capability: Rated up to 20,000 RPM for efficient material removal and clean finishes.
• Precision and Concentricity: G2.5 precision rating delivers tight runout and consistent cutting performance.
• Gauge Length: 100 mm gauge length provides stable seating and repeatable results.
• Form AD: Form AD mounting to fit standard BT40 tool holders for straightforward integration.

The result is a dependable tool holder that supports precise milling of small features, drilling, and engraving tasks where accuracy and speed matter. With the ER11 collet system, you can switch between tooling quickly without sacrificing rigidity, while the short, lightweight design minimizes chatter and improves surface finish at high RPMs. Ideal for shops that run high-speed BT40 milling centers or compact CNC machines, this mini ER collet chuck helps you maximize productivity and achieve repeatable results across jobs that require fine tolerances and clean finishes.