1、Reliable Material: Collect chunk adopts excellent cemented carbide, after heat treatment and cold drawing hardening, the strength is relatively high, with a certain degree of flexibility and plasticity. 2、Strong Performance: Tool holder collet has a series of excellent properties such as high hardness, wear resistance, excellent strength and toughness, heat resistance, corrosion resistance, etc. 3、High Concentricity: The outer diameter and inner cone are finely ground， which are eliminate the unbalance allowance, with high concentricity and strong stability. 4、High Accuracy: The surface is ground and polished for high wear resistance and heat resistance, the bright outer surface fits better and ensures excellent accuracy. 5、Wide Application: Collect chuck is widely used in CNC, engraving, spindle machines and other processing operations, CNC lathes, machining centers, tapping machines, drilling machines, milling machines and other equipment operations.