Burrs are finishing tools that remove sharp edges, unwanted projections, and excess material from machined workpieces. They can also be used for grinding, shaping, and cutting. They attach to rotary power tools such as die grinders, high-speed engravers, and pendant drills. Points are small, bonded abrasive wheels for detailed deburring applications, such as grinding, polishing, roughing, or removing material. They are also used for metal tool detailing or finishing in tight spaces.