Depressed Center Grinding Wheel, Abrasive Material Aluminum Oxide, Connector Size 7/8 in, Connector Type Unthreaded Hole, Grit 36, Overall Diameter 5 in, Overall Thickness 0.125 in, Primary Material Application Stainless Steel, Steel, Compatible Tool Type Angle Grinder, Series Gemini Flexible, Wheel Type Type 29, Maximum Operating Speed 12,225 RPM, Grade Extra Coarse