A smith set is a set of metal tools used to help with metalworking. It usually includes a hammer, an anvil, a variety of metal files, and a few other tools. The hammer is used to flatten and shape metal pieces, the anvil provides a hard working surface to shape metal on, and the files can be used to make fillets, custom shapes, and smooth surfaces on pieces of metal. The other tools can be used to cut, join, and polish metal surfaces.