Tiger Depressed Center Cutting Wheel, Long Life Non-Loading Performance Line, 4-1/2 in Wheel Dia, 0.045 in Wheel Thickness, Hub Connector, 60 Grit, Medium Grade, Silicon Carbide/Aluminum Oxide Abrasive, Wheel Type Number: Type 27, 13300 rpm Maximum, Resin Bond, Applicable Materials: Aluminum, 5/8-11 Center Hole Thread Size, Wheel Hardness: S, ANSI B7.1-2010 Specifications Met.Weiler’s diverse line of cutting wheels provide a consistent, well balanced, high quality solution. From our thin cutting wheels that slice through metal, to our large diameter wheels for the biggest cuts, professionals get the most demanding jobs done right and done fast.