Product Description Nylon fiber grinding wheel parameters Quantity: 5 pieces/pack Hardness: 9P, particle size: 180 mesh Net weight: 0.45 pounds Material: Made of high-toughness, high-temperature resistant high-quality nylon fiber, selected first-grade silicon carbide abrasive, and compounded with special adhesives. Features: wear-resistant, durable, high-speed operation without residual glue, and the workpiece does not turn black or yellow. It can be water-grinded, oil-grinded, and dry-polished. Partially replace sandpaper and wire wheels. When there are high requirements for the surface, the grinding wheel is often used with some lubricants, which can effectively dissipate heat, improve surface color and reduce dust.