1.Clamping ability,high accuracy; 2.Made of carbide&steel material; 3.Used for boring,milling,drilling,etc product details: Place of Origin: China (chengdu)Model Number: star colletsPrecision: High PrecisionBrand 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 ...