Pferd Cut-off Wheel, Depressed Center, Series: Performance Line SG, 4-1/2 in Wheel dia, 0.045 in Wheel Thickness, 46 Grit, Medium Grade, Aluminum Oxide Abrasive, 13300 rpm Maximum, Resin Bond, Applicable Materials: Stainless Steel (INOX), Carbon Steel and Ferrous Metal, 5/8-11 Center Hole Thread Size, Wheel Type Number: Type 27, Wheel Hardness: R, For Use with: Angle Grinders Pferd 63187 Performance Line SG Depressed Center Cut-Off Wheel, 4-1/2 in dia x 0.045 in thick, 46 Grit, Aluminum Oxide Abrasive