CNC Back Locking Collet Holder

Precision-ground to ISO guideline for minimal runout and maximal holding force—our CNC Back Locking Collet Holders offer twice the clamping strength of conventional ER collets (runout under 0.005 mm), making them ideal for high-speed machining. Designed to withstand centrifugal forces and provide dependable performance in demanding setups.

Why Choose Our CNC Back Locking Collet Holders?

• Superior Clamping Force. Back locking mechanism delivers enhanced grip compared to standard systems.
• Threads-Up Precision. Runout consistently under 0.005 mm for tight, repeatable tool alignment in high‑speed milling.
• High-Speed Ready. Balanced to handle spindle speeds up to 16,000 rpm or more, supporting consistent clamping at elevated speeds.
• Wide Interface Support. Available in BT30, BT40, and BT50 formats with collet types like ADS06/08/10, EC06/08/10/12, and UC10/16—ensuring compatibility across major tooling systems.
• Flexible Lengths. Offered in variable body lengths from around 60 mm up to 200 mm to match your tooling projections and reach requirements.