Cut-Off Grinding Wheel Abrasive Material Aluminum Oxide Connector Size 5/8 in Connector Type Unthreaded Hole Grit 24 Overall Diameter 4 in Overall Thickness 0.125 in Primary Material Applicationn Stainless Steel Steel Compatible Tool Type Angle Grinder Series Metal Wheel Type Type 27 Maximum Operating Speed 8 600 RPM Grade Extra Coarse