Abrasive Cut-Off Wheel Abrasive Material Aluminum Oxide Grit 60 Connector Size 7/8 in Connector Type Unthreaded Hole Overall Diameter 4 1/2 in Overall Thickness 0.0469 in Compatible Tool Type Angle Grinder Primary Material Applicationn Cast Iron Stainless Steel Steel Series ZIPCUT Wheel Type Type 1 Maximum Operating Speed 13 300 RPM Reinforced Status Reinforced