Wire Wheel Brush, Mounting Type Shank, Brush Dia. 1-3/4 In., Wire Dia. 0.006 In., Max. RPM 20, 000, Fill Material Carbon Steel, Bristle Type Crimped Wire, Face Width 1/2 In., Trim Length 5/8 In., For Use With Die Grinder, Right Angle Grinder, Hand Drill, Drill Press, Shank Size 1/4 In.