4.5" x 7/8" Nylon Fiber Flap Disc Polishing Grinding Wheel Fiber Material Suitable for cleaning crevices with good polishing and buffing results. Metal Rivet Bore Reinforced and thickened bore for good concentricity and durability. Vertical Design Suitable for cleaning and polishing of metal, wood and other surfaces, removing rust, etc. NOTE When using this tool, you need to wear occupational safety protection tools, such as work goggles, work gloves, and hearing protection. Used on the angle grinder, the industrial cleaning cloth elastic grinding, does not hurt the surface of the workpiece, self-sharpening, water-resistant, oil-resistant and anti-clogging, the special structure of the effective heat dissipation. For stainless steel, metal, aluminum and copper products, wood and other materials grinding, polishing, deburring, decontamination cleaning, surface drawing and other surface treatment work.