Milling cutter, is used for milling, with one or more of the rotating knife knife. Work in the knife cut to the workpiece intermittently headroom. Mainly used in milling cutter plane, the processing steps, groove, forming surface and cut piece etc. Two common milling carbide materials, high. The latter relative to the former high hardness, hi-grinding force can improve speed and feed rate, increase productivity, and make knife, and no obvious processing stainless steel/titanium alloy difficult-to-machine materials, but the cost is higher, but in the case of alternating fast cutting force to break under the knife.