Abrasive Cut-Off Wheel, Abrasive Material Aluminum Oxide, Grit 46, Connector Size 7/8 in, Connector Type Unthreaded Hole, Overall Diameter 4 1/2 in, Overall Thickness 0.045 in, Compatible Tool Type Angle Grinder, Circular Saw, Primary Material Application Aluminum, Brass, Copper, Series A46N, Wheel Type Type 1, Maximum Operating Speed 13,300 RPM, Reinforced Status Reinforced, Bond Type Resin The SAIT(TM) Type 1 general-purpose cut-off wheel features aluminum oxide abrasive. For cutting and grinding ferrous metal and aluminum.