Material:Tungsten carbide K25;Head Shape:Cylinder radius end;Cut type:Double/Single/Nonferrous/SP Chip Breaker/Diamond/Coarse/Fine;MOQ:50pcs;Usage:Grinding metal;Hardness:HRA89-HRA92.9;Shank Diameter:3mm/6mm/8mm/10mm;Rotary speed:15,000~100,000 rpm;Coati