Depressed Center Wheels, Abrasive Wheel Type Type 27, Abrasive Wheel Diameter 9 in, Thickness 0.125 in, Arbor Hole Size 5/8 In. -11, Abrasive Material Zirconia Alumina, Abrasive Grit 24, Max. RPM 6, 600 RPM, Series Ultimate Pipeline, Grade Extra Coarse, Application Cutting, Deburring, Grinding, Metalworking. This item has been restricted from sale in the following state (s): []