Broach is a forming tool for broaching. There are multiple rows of cutter teeth on the surface of the tool, and the size and shape of each row of cutter teeth increase and change successively from the cutting in end to the cutting out end. When broach is broaching, a certain thickness of metal is cut from the workpiece by each cutter tooth, and the required size and shape are finally obtained. Broach is often used in batch and mass production to process round hole, spline hole, keyway, plane and forming surface, etc. Broach can be divided into internal broach and external broach according to different surface parts; broach and broach can be divided into broach and push knife according to different stress modes during working. The pusher is often used to calibrate the hole after heat treatment.

The solution of PVD coating equipment provided by HCVAC Vacuum Technology Co., Ltd., such as hobbing cutter, milling cutter, drill bit, end milling cutter, screw tap, reamer, etc., after coating treatment, the phenomenon of blade dissolution can be greatly reduced, and the friction phenomenon can be reduced. Therefore, the tool wear can be improved, and the surface quality and precision of products can be improved. Therefore, in addition to prolonging the tool life and improving the cutting conditions, the manufacturing cost can be greatly reduced.