Wire Wheel Brush, Mounting Type Arbor Hole, Arbor Hole 1/2 In. to 3/8 In., Brush Dia. 3 In., Wire Dia. 0.0118 In., Max. RPM 25, 000, Fill Material Carbon Steel, Bristle Type Twist Wire, Face Width 3/8 In., Trim Length 5/8 In., For Use With Right Angle Grinders, Straight Grinders, Bench or Pedestal Grinders