Norton Foundry Cut-Off Wheel, All Purpose, Series: U57A, 12 in Wheel Dia, 3/32 in Wheel Thickness, 1 in Center Hole, 46 Grit, Medium Grade, Aluminum Oxide Abrasive, 5095 rpm Maximum, Resin Bond, Applicable Materials: 300 Series Stainless, 400 Series Stainless, Aluminum, Brass, Bronze, Copper, Cast Iron, Ductile Iron, Hard Carbon Steel, Soft Carbon Steel, Gray Iron, Super Alloys, Tool Steel and Titanium, Wheel Type Number: Type 01/41 Straight, For Use With: Chop Saw and Chop Stroke Machines, No Reinforced