Second, it will not damage the surface of the object: In the past, the coating on the surface of the object was quickly removed during the grinding process simply by using sharp and hard silicon carbide, but at the same time, it will also leave slip marks on the surface of the object to be ground. The multifunctional grinding & polishing wheel is surrounded by silicon carbide particles with resin body and bonded to the fiber silk net. While grinding at a high speed, the wear-resistant fiber silk screen will polish and smooth the sliding marks left by the frosted particles on the surface of the object, not only the coating is removed, but also the surface of the object is polished without damage, which is more suitable for polishing thin metals.