Anvil is a common tool. In its simplest form, it is a piece of metal that is used to place a hard surface on which a forged object is forged.The inertia of the anvil transfers the energy of the forging tool to the workpiece.In most cases, anvil is used in metal forging.Before the advent of modern welding technology, it was the main tool for metal workers.Modern cutting boards are made mostly of steel, but also of other materials.