Depressed Center Cut-Off Wheel, Abrasive Material Ceramic, Connector Size 7/8 in, Connector Type Unthreaded Hole, Grit 46, Overall Diameter 4 1/2 in, Overall Thickness 0.045 in, Primary Material Application Nickel Alloy, Stainless Steel, Steel, Compatible Tool Type Angle Grinder, Series A46U-BF, Wheel Type Type 27, Maximum Operating Speed 13,300 RPM