Heavy-Duty Depressed Center Grinding Wheel, Type 27, 4 1/2 In Dia, 1/4 In Thick, 7/8 In Arbor Hole Size Depressed Center Wheels

Depressed Center Grinding Wheel, Abrasive Material Zirconia Alumina, Connector Size 7/8 in, Connector Type Unthreaded Hole, Grit 30, Overall Diameter 4 1/2 in, Overall Thickness 0.25 in, Primary Material Applicationn Steel, Compatible Tool Type Angle Grinder, Series SG, Wheel Type Type 27, Maximum Operating Speed 13,300 RPM, Grade Extra Coarse