Depressed Center Wheels, Type 27, 4 1/2 in Dia, 0.125 in Thick, 7/8 in Arbor Hole Size, Norton Abrasives, Mfr#: 66252843611

Cut-Off & Grinding Wheel, Abrasive Material Aluminum Oxide, Connector Size 7/8 in, Connector Type Unthreaded Hole, Grit 24, Overall Diameter 4 1/2 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 13,580 RPM, Grade Extra Coarse