Norton Gemini Cut-Off Wheel, All Purpose Small Diameter, Series: U57A, 7 in Wheel Dia, 0.06 in Wheel Thickness, 5/8 in Center Hole, 36 Grit, Coarse Grade, Aluminum Oxide Abrasive, 8730 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, For Use With: Circular Saw Machines, Yes Reinforced