Milwaukee Cut-Off Wheel, Type 27 Reinforced, 4-1/2 in Wheel Diameter, 0.045 in Wheel, 7/8 in Center Hole, 60 Grit, Medium Grade, Aluminum Oxide Abrasive, Wheel Type Number: 27, 13850 rpm Maximum, Resin Bond, Applicable Materials: Metal and Stainless Steel, Wheel Hardness: T, Black Wheel