... machines. Choose from wheels for cutting and grinding sheet metal, Depressed Center Wheel, Type 42, Cutting and Grinding, ... Type, Max. RPM 8308, For Various Ferrous Metal.For grinding and cutting metal,sainless steel,stone with Angle Grinder.Item NO ... In.Abrasive MaterialAluminum OxideGrit36Bond TypeResinMax. RPM8308ApplicationFor Various Metal and stoneCountry of OriginChina Cutting and Grinding