... .8 ≥91.0 ≥2150 Fine grain alloy, good wear resistance. Used for processing hard wood, veneer board, PCB, PVC and alloy ... .8 ≥90.5 ≥2420High wear resistance, high anti-bending strength, used for lead cutter in electrical line. G20 14.0 ≥85 ... .5 ≥2600Conventional wear resistance, high anti-bending strength, used for steel alloy etc.the grade as follow cutter is ...