Norton Cut-Off Wheel, Toolroom, Series: 57A, 8 in Wheel Dia, 1/16 in Wheel Thickness, 1-1/4 in Center Hole, 60 Grit, Medium Grade, Aluminum Oxide Abrasive, 5730 rpm Maximum, Resin Bond, Applicable Materials: 300 Series Stainless, 400 Series Stainless, Aluminum, Brass, Bronze, Cast Iron, Copper, Ductile Iron, Gray Iron, Hard Carbon Steel, Soft Carbon Steel, Super Alloys, Tool Steel and Titanium, Wheel Type Number: Type 01/41 Straight, Wheel Hardness: M, For Use With: Chop Saw and Chop Stroke Machines, No Reinforced