Face and side milling cutter based on hard alloy

The utility model discloses a face and side milling cutter based on hard alloy, which comprises a key groove, an inner hole, a cutter body and a cutting edge. The cutter body adopts a disk type; the inner hole is arranged at the center of the cutter body; the inner hole is provided with the key groove; and the cutting edge is welded with the cutter body into a whole body. The face and side milling cutter has a simple structure, is convenient to use, and not only reduces the cost on the basis that the precision is guaranteed, but also greatly prolongs the service life of the milling cutter.