Depressed Center Wheels, Abrasive Wheel Type Type 27, Abrasive Wheel Diameter 6 in, Thickness 0.045 in, Arbor Hole Size 7/8 in, Abrasive Material Aluminum Oxide, Abrasive Grit 60, Max. RPM 10, 200 RPM, Series A60S, Grade Medium, Application Ferrous Metal. This item has been restricted from sale in the following state (s): []