Depressed Center Cut-Off Wheel Abrasive Material Aluminum Oxide Connector Size 7/8 in Connector Type Unthreaded Hole Grit 24 Overall Diameter 7 in Overall Thickness 0.0938 in Primary Material Applicationn Aluminum Stainless Steel Steel Compatible Tool Type Angle Grinder Series Gemini Wheel Type Type 27 Maximum Operating Speed 8 600 RPM Grade Extra Coarse