Abrasive -Off Wheel, Abrasive Material Aluminum Oxide, Grit 60, Connector Size 7/8 in, Connector Type Unthreaded Hole, Overall Diameter 4 1/2 in, Overall Thickness 0.09 in, Compatible Tool Type Angle Grinder, Circular Saw, Primary Material Applicationn Steel, Series A60S, Wheel Type Type 1, Maximum Operating Speed 13,300 RPM, Reinforced Status Reinforced, Bond Type Resin