... M type, type MG90B phi 200 above specifications for roughing and composite cutter, in rough machining, can be easily installed fine ... the more than 200 with fine blade, suitable for roughing and composite milling.MGZ60-MΦ100 ~Φ400The sword before USES positive ... rake Angle, cutting light, suitable for milling of steel, flat with a right Angle iron and steel casting. indexing face milling cutter