Polishing and polishing is a finishing process that uses abrasives and work wheels or leather belts to make the surface of the workpiece smooth. Technically, polishing refers to the process of using abrasives that are glued to the working wheel, while polishing uses loose abrasives that are applied to the working wheel. Polishing is a more aggressive process, while polishing is less rough, resulting in smoother, brighter surfaces. A common misconception is that polished surfaces have mirror gloss finishes, but most mirror gloss finishes are actually polished. Polishing is commonly used to enhance the appearance of items, prevent contamination of instruments, remove oxidation, create reflective surfaces, or prevent pipe corrosion. In metallography and metallurgy, polishing is used to produce a flat, defect-free surface so that the microstructure of a metal can be examined under a microscope. A silicon-based polishing pad or diamond solution can be used in the polishing process. Polishing stainless steel can also increase its sanitary benefits. Use a metal polish or rust remover to remove oxidation (tarnish) from a metal object; This is also called polishing. To prevent further unnecessary oxidation, the polished metal surface may be coated with wax, oil, or paint. This is especially important for copper alloy products such as brass and bronze. Although not as widely used as traditional mechanical polishing, electropolishing is another form of polishing that uses electrochemical principles to remove microscopic layers of metal from the base surface. This polishing method can be fine-tuned to provide finishes ranging from matte to mirror gloss. Electropolishing also has advantages over traditional manual polishing because the finished product does not undergo the compression and deformation traditionally associated with the polishing process.Polishing can be used to enhance and restore the appearance of certain metal parts or objects on automobiles and other vehicles, handrails, cookware, kitchenware and construction metal.There are two kinds of polishing actions: cutting action and color action. The cutting movement is designed to provide a uniform, smooth, semi-polished surface finish. This is achieved by moving the workpiece against the rotation of the polishing wheel, while applying moderate to hard pressure. Color movement provides a clean, bright, shiny surface finish. This is achieved by moving the workpiece with the rotation of the polishing wheel, while using moderate to light pressures.The condition of the material at hand determines which type of abrasive will be used. If the material is not finished, coarse abrasives (may be 60 or 80 grain size) are used in the first stage and finer abrasives such as 120, 180, 220/240, 320, 400 and higher grain size are used in each subsequent stage until the desired finish is achieved. Roughness (i.e., large grit) works by removing imperfections such as pits, nicks, lines and scratches from the metal surface. Finer abrasives leave lines invisible to the naked eye. No. 8 (" specular ") finish requires polishing and polishing compounds, as well as a polishing wheel attached to a high speed polishing machine or electric drill. Lubricants such as wax and kerosene although some polishing materials are specifically designed for "dry" use, they can be used as a lubricating and cooling medium during these operations. Polishing can be done manually using a stationary polishing machine or a die grinder, or it can be done automatically using special equipment.