Cutting, grooving and trimming. It includes: 6 high-speed steel cutting wheels, 5 connecting shafts, 10 resin cutting wheels, 10 diamond cutting wheels and 10 sandpaper cutting wheels Diamond cutting wheel: size: 22mm, suitable for cutting gems, glass, Geramics, porcelain, ceramic tiles, carbide, rock, aluminum and copper Resin cutting wheel: size: 32mm, very suitable for cutting metal including hardened steel, iron, aluminum. High-speed steel cutting wheel: size: 22/25/32/35/44/50mm, very suitable for cutting wood, plastic, copper, laminate and aluminum. Suitable for most electric die grinders or rotary tools and pneumatic tools. Rotary cutting wheel group is for cutting and trimming metal, wood, gypsum board, plastic, glass, stone, ceramic, cemented carbide, gemstone processing and so on. Material:High speed steel + diamond + resin colour:Silver+black+red<br><br>Package Contents: 6 x high-speed steel cutting wheels (22/25/32/35/44/50mm) 5 x connecting shafts 10 x resin cutting wheels (32mm) 10 x diamond cutting wheels (22mm) 10 x sandpaper cutting wheels Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.