Mechanical polishing is a process used to improve the surface finish of materials, typically metals or plastics. It involves using abrasive tools or compounds to remove imperfections, scratches, and oxidation from the surface. This technique enhances the material's appearance and prepares it for further treatments, such as coating or plating. The process can be performed using various equipment, including polishing machines, grinders, and buffing wheels. Different grades of abrasives are selected based on the desired finish and the material being polished. Mechanical polishing is commonly used in industries like automotive, aerospace, and jewelry manufacturing.