SAIT Cut-Off Wheel, Thin High Speed, 4 in Wheel Dia, 1/16 in Wheel Thickness, 5/8 in Center Hole, A60T Grit, Medium Grade, Aluminum Oxide Abrasive, 19000 rpm Maximum, Resin Bond, Applicable Materials: Ferrous Metals and High Tensile Metals, Wheel Type Number: Type 1, Wheel Hardness: T, For Use With: Die Grinders, Reinforced: Yes