Depressed Center Cut-Off Wheel Abrasive Material Aluminum Oxide Connector Size 7/8 in Connector Type Unthreaded Hole Grit 46 Overall Diameter 7 in Overall Thickness 0.045 in Primary Material Applicationn Aluminum Brass Copper Compatible Tool Type Angle Grinder Series A46N Wheel Type Type 27 Maximum Operating Speed 8 500 RPM