Depressed Center Wheels, Abrasive Wheel Type Type 27, Abrasive Wheel Diameter 5 In., Thickness 1/8 In., Arbor Hole Size 5/8 In.-11, Abrasive Material Zirconia Alumina, Abrasive Grit 24, Max. RPM 12,200, Series Ultimate Pipeline, Grade Extra Coarse, Application Metalworking, Cutting, Grinding, Deburring. This item has been restricted from sale in the following state(s): []