Abrasive Cut-Off Wheel, Abrasive Wheel Type Type 1, Abrasive Wheel Diameter 4 1/2 in, Thickness 0.06 in, Arbor Hole Size 7/8 in, Abrasive Material Aluminum Oxide, Max. RPM 13, 300 RPM, Application Ferrous Metal, Stainless Steel, Steel, Package Quantity 25