Tiger Ceramic, 58300, Cut-Off Wheel, Superior Life and Cut, 4-1/2 in Wheel Diameter, 0.045 in Wheel, 7/8 in Center Hole, 60S Grit, Fine Grade, Ceramic Alumina Abrasive, 13300 rpm Maximum, Resin Bond, Applicable Materials: Tool Steel, Inconel, High Nickel Alloy, Titanium, Armored Steel, Stainless Steel and other Hard-to-Cut Metals, Wheel Type Number: Type 1, For Use With: Right Angle Grinders, Reinforced: Yes, Specifications Met: ANSI B7.1-2010