Tiger Zirc, 58012, Cutting Wheel, Flat High Performance Fast Cut and Long Life, 3 in Wheel Diameter, 0.035 in Wheel, 1/4 in Center Hole, 60 Grit, Fine Grade, Zirconia Alumina Abrasive, 25000 rpm Maximum, Resin Bond, Applicable Materials: Iron, Stainless Steel, Steel and Structural Steel, Wheel Type Number: Type 1, Wheel Hardness: T, For Use With: Die Grinder, Right Angle Air Die Grinder, Mandrel, Reinforced: Yes, Specifications Met: ANSI B7.1