1.Made of carbide&steel material 2.Used for boring,milling,drilling,etc 3.Clamping ability,high precision 4.Good package Place of Origin: China (chengdu) Model Number: star colletsPrecision: High Precision Brand Name:DSP High quality made of carbide & steel material high precision:4u(0.004mm)--15u(0.015mm) all kind of collet campany details: DSP precision co ,ltd(JAPAN Investment)is located in ...