Multi-function tools are very flexible power tools designed for use in smaller-scale work and projects. Multi-function power tools use an oscillating (or side-to-side) motion to perform tasks such as routing, cutting, sawing, scraping and sanding. The functions of a multi-function tool are dependant on the tool, and the accessories available for it. The accessories for the specific multi-function tool also affect the materials it can be used with, but this may include use on copper, plastics, wood, stone, metals and more.