The whole hard alloy end mill uses in the precision work, also realizes highly effective, the low cost processing method, and lengthened the tool life, to difficult to process the material the processing to display the outstanding performance. The home along with the NC milling machine and machining center's popularization, each kind of precise processing needs and so on components and precision mold, starts to promote the use whole hard alloy end mill gradually. The whole hard alloy end mill and the high-speed steel end mill compare, have Yi Duan, the easy breaking, the price higher deficiency.