A wheel used for cutting, grinding, or finishing metal or other objects, and typically made of abrasive particles bonded together.

Grinding is an abrasive machining process that uses a grinding wheel or abrasive belt as the cutting tool. It is commonly used to remove material from a work piece, to produce a smooth finish on the surface of the work piece, or to remove burrs from the surface.

Grinding wheels contain abrasive grains and layers of fiberglass bonded into a wheel shape by another substance. The abrasive grains act as grinding tools, removing material from a workpiece to shape and refine it. Grinding wheels are useful in many grinding and machining operations.