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Applications: Precision polishing of surfaces made from non-ferrous metals and various non-metallic materials. Examples include mirror-finish polishing for automotive parts, golf club heads, mobile phone casings, glass, gemstones, and marble, as well as the removal of oxide layers prior to coating. High-grit polyurethane polishing wheels provide a finishing touch after initial polishing with cloth or fiber wheels, imparting a premium look and feel to the product. Product Features: Polyurethane polishing wheels offer exceptional wear resistance and good self-sharpening properties. They contain silicon carbide abrasive, ensuring sharpness and durability. They feature a uniform microporous structure, excellent toughness, and superior elasticity. During polishing, abrasive particles detach directly without generating dust. They offer a long service life and deliver outstanding polishing results, performing equally well in both dry and wet applications. Product parameters: Polyurethane polishing wheel 3 inches diameter, 3/8 inch Arbor, 3/4 inch thickness. 70A (shore) hardness , 2000 Grit., particle size 2000. Please choose a suitable polyurethane polishing wheel according to the diameter and speed of your machine spindle. Polyurethane polishing wheels are often used with some lubricants. It is more durable and polished more finely than cloth wheel, fiber wheel and wool wheel. It can partially replace sandpaper and scouring pad wheels. Safety and Precautions:. The rotation speed of polyurethane polishing wheel is generally 1500-3000 rpm. Choose the correct speed and pressure when polishing. Begin polishing slowly and with low pressure. Especially for thin-walled parts, choose low speed for polishing. Too high a speed can easily burn the workpiece. During the polishing process, it is necessary to move the grinding position quickly to prevent burning the workpiece and uneven grinding After-sales: Each of our products has been strictly inspected and carefully packaged. If you accidentally receive an unsatisfactory product, please feel free to contact Amazon and we will try our best to solve the problem until you are satisfied