APU Drill Chuck

APU Drill Chuck

Comprehensive features of drill chucks
*Material:20CrMnTi.Hardness 56-58HRC;
*Carbon depth:>0.8;
*Integrated design of the rob and chuck can avoid the rob and chuck separate, enhance reliability and stability;
*Self-tightening,grasp the chuck slightly,when drilling grasp force is enhancing with the torque increasing and develop obvious strong grasp force to prevent the drill remove;
*Coating surface enhance surface hardness durability antirust and anti-corrosion better,precision more sable,surface more smooth and appearance more nice.