Features: 100% brand new and high quality. Resin, a tapered side cladding type. Diamond resin grinding wheel, high hardness, high strength, grinding ability. Resin grinding wheel has good polishing effect, grinding wheel sharp, not easy to plug, high grinding efficiency. Great resin bond for uncomplicated grinding operation with good material removal rates, while maintaining a low thermal influence on the workpiece. Grinding carbide lathe and milling cutters and inserts, sharpen carbide tooling absolutely, work great for grinding carbide tipped lathe bits. Mainly used for grinding carbide and hard steel, stone, metal and other processing and polishing. Specifications: Material: Resin bond diamond sand, Aluminum Color: as picture show Diameter: 100mm/ 4 inch Hole Diameter: 20mm(7/8") Grit: 150 240 320 400 Thickness: 16 8 10 12 16 20 25mm Concentration : 75% Quantity: 1 Pc Package Included: 1Pc x Resin Diamond Grinding Wheel