ER40 Collet Chuck – NT40 M16 Drawbar 60mm A precision-ground ER40 collet chuck with NT40 (National Taper 40) shank and M16 drawbar thread. Designed for secure and accurate tool clamping in CNC milling machines with an NT40/BT40 spindle. Collets sold separately. Key Features & Benefits NT40 shank for NT40/BT40/ISO 40 CNC spindles M16 drawbar thread for secure retention Hardened and precision ground for superior accuracy Run-out: 0.01mm Compatible with all standard ER40 spring collets Suitable for milling, drilling, and tapping operations Technical Specifications Collet Type: ER40 (collets not included) Shank Taper: NT40 (National Taper 40 / BT40 / ISO 40) Drawbar Thread: M16 Gauge Length (L1): 60mm Head Diameter (D1): 60mm Total Length: 150mm Run-out Accuracy: 0.01mm Material: Hardened alloy steel, precision ground Hardened and precision ground to deliver consistent clamping performance. Compatible with the full range of ER40 spring collets for versatile tool holding across workshop and production environments.
