Descriptions:* Made of nylon bristles, sides of bristles act as flexible files to all kinds of holes, grooves and corners.* Great tool for removing rust and painting from flat surfaces, lightly sanding wood and preparing metal or wood for painting.* Suitable for woodworking, mahogany furniture, three plywood surface finishing, the purpose of complex furniture wood grain processing, concave and convex surface grinding operations. Specifications:* Color: Gray* Granularity: 80 Grits* Wheel Material: Nylon* Backing Material: Nickel Plated Carbon Steel* Wheel Diameter: 80mm / 3.15-inch* Wheel Thickness(Approx.): 35mm / 1.38-inch* Shank Size: 6 x 65mm / 0.24 x 2.56-inch (D*L)* Thread Size: M8 x 24mm / 0.31 x 0.94-inch Package Content: * 1 x Nylon Wheel Brush.