These machines include the:
Belt grinder, which is usually used as a machining method to process metals and other materials, with the aid of coated abrasives. Analogous to a belt sander which itself is often used for wood but sometimes metal. Belt grinding is a versatile process suitable for all kind of applications, including finishing, deburring, and stock removal.
Grinding is an abrasive machining process that uses a grinding wheel as the cutting tool.
A wide variety of machines are used for grinding:
Hand cranked knife sharpening stones grindstones
Handheld power tools such as angle grinders and die grinders