The circular saw is a metal disc or blade cutter sometimes with saw teeth on the edge as well as the provides machine that causes the disk to spin. It is a tool for cutting wood or other materials and may be hand-held or table-mounted. It can also be used to make narrow slots. Most of these saws are designed with a blade to cut wood but may also be equipped with a blade designed to cut masonry, plastic, or metal. There are also purpose-made circular saws specially designed for particular materials. While today circular saws are almost exclusively powered by electricity, larger ones, such as those in “saw mills”, were traditionally powered by water turning a large wheel. Chaine Saw used for only standing woods in the forest, but sometimes it was used for carving, they have marverous techniques to make funny shapes.