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     Abrasives are commonly used by industries to smooth out a material through repetitive rubbing. These abrasives work effectively with power tools such as angle grinder, finishing sander and hand drill to finish projects faster without sacrificing quality. These accessories work by scratching the material to get rid of rust, dirt, and other unwanted substances. Common examples of abrasives include diamond cup, flap disc, cup brush, grinding disc, sanding disc, steel brush, sandpaper, needle file and many more to mention.