Depressed Center -Off Wheel, Abrasive Material Aluminum Oxide, Connector Size 7/8 in, Connector Type Unthreaded Hole, Grit 24, Overall Diameter 5 in, Overall Thickness 0.045 in, Primary Material Applicationn Aluminum, Stainless Steel, Steel, Compatible Tool Type Angle Grinder, Series Gemini RightCut ALU, Wheel Type Type 27, Maximum Operating Speed 12,225 RPM, Grade Extra Coarse