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 automatic lathes.1.Stable performance, once formed inside and outside. The shank is clamped once, high concentricity, relatively high strength after hot processing and high temperature treatment, with certain flexibility and plasticity. 2.High precision, wear-resistant and durable. Internal control high-precision grinding, overall finishing. Suitable for high precision machine tool processing requirements, runout accuracy <0.003. 3.Thread explosion-proof, easy locking. The threads are neat and smooth, no missing teeth and no burrs, all produced by molding technology.