Tiger Depressed Center Cutting Wheel, Performance Line Superior Life and Cut, 7 in Wheel Dia, 0.06 in Wheel Thickness, Quick-Change Connector, 60 Grit, Medium Grade, Ceramic Alumina Abrasive, Wheel Type Number: Type 27, 8500 rpm Maximum, Resin Bond, Applicable Materials: Tool Steel, Inconel, High Nickel Alloy, Titanium, Armored Steel, Stainless Steel and Hard-to-Cut Metals, 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.