A milling cutter is a rotating cutter with one or more cutter teeth for milling. When working, each cutter tooth intermittently cuts off the allowance of the workpiece. Cemented carbide milling cutters are mainly used in CNC machining centers and cnc engraving machines. It can also be installed on an ordinary milling machine to process some hard and uncomplicated heat treatment materials. 

The two-edge milling cutter is a keyway milling cutter, which belongs to a fixed-size prop, the accuracy of the keyway dimension is high, and the end face of the keyway milling cutter has no tip hole, so it can be fed directly down.