A collet is a part which is mainly responsible for clamping small diameter workpiece to the spindle end. It is mainly used in hexagonal lathes and cnc lathes.1.Stable performance, once formed inside and outside. The shank is clamped in one time, high concentric high strength after hot processing and high temperature treatment, with certain flexibility and plasticity. 2.High precision, wear-resistant and durable. High precision and strict grinding of inner hole, overall finishing. Suitable for high precision machine tool processing requirements, run out accuracy <0.003. 3.Thread explosion-proof, easy locking The product threads all meet the requirements of national standards, regular inspection qualified, neat and clean threads, no missing teeth and no burrs, are produced by molding technology.