Wire Wheel Brush, Bristle Type Crimped Wire, Product Type Wire Wheel Brush, Bristle Material Nylon, Brush Dia. 4 in, Grit 180, Face Width 1/2 in, Bristle Diameter 0.035 in, Bristle Length 7/8 in, Compatible Tool Type Die Grinder, Drill Press, Pencil Grinder, Straight Grinder, Primary Material Application Carbon Steel, Connector Type Threaded Hole, Connector Size 1/2 in to 3/8 in, Operating Speed - Maximum 20, 000 RPM. This item has been restricted from sale in the following state (s): []