Lattice heterogeneous coating added with special elements, with high hardness and excellent high temperature oxidation resistance, more suitable for high hardness materials and high speed machining unique cutter structure, properly designed chipbreaker, for outstanding cutting performance. Orange red coating allows for better wear observation. Special after treatment greatly reduces friction, for smoother chip evacuation and superior surface quality. Perfect high temperature oxidation resistance: After oxidation at 1100 ° C, HMX series cutter coating only has a very thin oxide layer, while the similar products of Company A has completely oxidized.tool: HMX-4E-D10.0 workpiece material: SKD11(62HRC) cutting speed: 100m/min feed per tooth: 0.2mm/r axial depth of cut: ap=10mm radial depth of cut: ae=0.3mm cooling system: air cooling