This 129 pcs abrasive polishing wheel are for DIY polished engraving, polishing (wood, metal, mold polishing purposes). These are fine quality wool grinding heads wheel for electric grinding accessories. Can be used for metal grinding, such as repairing, wear resistance, grinding strength is strong.Features:Wool wheel brushes give polished finish on metal surface with suitable polishing material for the metal.Perfect for jewellery and similar work as they can reach and polish difficult to reach areas.Use soft wool for precious metals (gold, silver, etc). Leave glossy finish on metals.Accurate ground for quick, easy sharpening of saw blades.Widely used in accurate polishing technology and burring, grinding process, and the grinding force is 5 to 10 times higher than general grinding tool.Specifications:Color: WhiteMaterial: Wool + IronPolishing Wheel Diameter: 25mm / 0.98", 13mm / 0.51"Wool Wheel Thickness: 8mm / 0.31"Handle Diameter: 3.175mm / 1/8"Handle Length: Approx. 38mm / 1.5"Felt Polishing Wheel Shank Diameter: 3mm / 1/8"Package Size: Approx. 160 * 120 * 30mm / 6.3 * 4.7 * 1.2inPackage Weight: Approx. 146g / 5.1ouncePacking List:50 * 25mm Wool Wheel Brushes50 * 13mm Wool Wheel Brushes4 * 3.2mm Polishing Wheel Handle10 * 3*10mm Cylindrical Grinding Wheel15 * 3*10mm Conical Grinding Wheel