Abrasive Cut-Off Wheel Abrasive Material Aluminum Oxide Grit 60 Connector Size 3/8 in Connector Type Unthreaded Hole Overall Diameter 4 in Overall Thickness 0.0625 in Compatible Tool Type Die Grinder Primary Material Applicationn Cast Iron Stainless Steel Steel Series A60T Wheel Type Type 1 Maximum Operating Speed 19 000 RPM Reinforced Status Reinforced Bond Type Resin