What tool is a grinder?

Grinder is a kind of machine tool that uses abrasive tools to process the surface of objects. The processing action of grinder is grinding, and grinding plays a major role in mechanical processing. The function of grinder is high grinding precision and relatively small rough surface, which can be used for high efficiency grinding. Grinders can process high-hardness materials such as hardened steel and cemented carbide, as well as brittle materials such as glass and granite. Widely used in medical industry, aerospace, communication manufacturing, automobile industry and 3C electronic products.