Features Made of high quality material, wear-resistant, long service life. Designed for grinding carbide and hard steel, stone, metal and other machining and polishing work. Synthetic resin binder for a simple sanding process with good material removal and at the same time little thermal influence on the workpiece. It is mainly used in the processing of alloy knives, saw blades, sawtooth and grinding. It can process tungsten steel, quench steel and grind special hard and brittle materials. Features: Made of high quality material, wear-resistant, long service life. Designed for grinding carbide and hard steel, stone, metal and other machining and polishing work. Synthetic resin binder for a simple sanding process with good material removal and at the same time little thermal influence on the workpiece. It is mainly used in the processing of alloy knives, saw blades, sawtooth and grinding. It can process tungsten steel, quench steel and grind special hard and brittle materials. Specifications: Material: diamond, aluminum alloy, resin Binder: resin grinding wheel Grit: 180# Shape: bowl shape Process: Sintering Outer diameter: 100 mm/3.9 inches. Hole diameter: 20 mm/0.8 inches. Package Weight: 250g Package List: 1 x diamond grinding wheel. Package List