Tundra's Mini Grinder Set features a flap disc for grinding and finishing, wire cup brush to remove rust and corrosion, and a wire wheel for quick removal of paint and surface rust. Can be used to clean large surface areas, grooves, and corners, or in weld preparation. Set includes 4-1/2" zirconium flap wheel, 60 grit 3" knotted wire cup brush, 5/8"-11 arbor, 4" knotted wire wheel, 5/8"-11 arbor.