The whole tool adopts high-quality high-speed steel,which has got balanced hardening treatment,and 130 ° appropriate angle design.It can quickly lead in screw groove reduce resistance and improve corking efficiency.
The whole tool adopts high-quality high-speed steel,which has got balanced hardening treatment,and 130 ° appropriate angle design.It can quickly lead in screw groove reduce resistance and improve corking efficiency.
整体采用优质高速钢材质，经均衡硬化处理，130°合理角度设计，能快速导入螺旋沟槽，减少阻力，提高工作效率。