Features:Made of high quality material, wear resistance, long service time.Designed to grind carbide and hard steel, stone, metal and other processing and polishing.High grinding efficiency, smooth, unbroken edges, will not produce tremor.Mainly used in alloy knife, saw blade, saw tooth processing and grinding. Can processing tungsten steel, quenching processing steel, special hard brittle materials grinding. Specification:Material: Diamond, Resin Weight: 75g/2.6ozBinder: resin grinding wheel Grit: 150#Shape: roundProcess: sintering Outer diameter: 80mm/3.1inchBore diameter: 16mm/0.6inch Package List:1* Diamond Grinding Wheel