The cutting edges are sharpended and regulated by auotmatic processing machine. They cut stably, are strong resistance to impact and good wearing capability. They can also cut on workpiece with rough surface.

Suitable for high intension cutting and deeply cutting.

The combination of high speed steel and carbon steel is selected to make the body, which immensely cuts the cost.

Ejector spring,ф6 pilot drill and screw are fitted for all diameters.