Specification: Material: stainless steel, Aluminum Color: black, purple, blue size:10*1.6cm Packaged included: 1pcs x grinder wheel Grit: 40 grit (medium grit) Max. rpm:12200, 80m/s This product uses fiber mesh as the carrier, and uses resin elastomer to firmly attach the sharp abrasive to the fiber mesh. When polishing this product at high speed, the abrasive sand will not fall off and the service life is long. It can be used to polish steel, plastic, new fiber products, stone, concrete and other surfaces. Used for pneumatic tools. Polishing and processing of complicated surfaces and deep holes of various metals or non-metals, especially suitable for grinding concave and convex surfaces and side surfaces. Cup wheel: used to remove thorns on the painted surface and the coated surface, mainly engaged in automobile repair, polishing of concrete workpieces. Products are divided into black, purple, blue