Grinding (abrasive cutting) Wikipedia
A wide variety of machines are used for grinding: Handcranked knifesharpening stones (grindstones) Handheld power tools such as angle grinders and die grinders; Various kinds of expensive industrial machine tools called grinding machines; Bench grinders; Grinding practice is a large and diverse area of manufacturing and toolmaking. It can produce very fine finishes and very accurate dimensions; yet in .