Swages were originally tools of the blacksmith trade, used for forming metal into various shapes which were too intricate to make with a hammer alone. Swages called "fullers" are often used in bladesmithing, for making grooves in swords and knives. Swage blocks are anvil-like dies with various shapes forged into them, which are also used for forming metal. Blacksmithing swages are typically tools with faces of various shapes, sometimes with handles for holding or pegs for attaching to an anvil, and often have a flat head for striking with a hammer. Swages are used for shaping the metal in various ways, to increase its beauty or its fit for a desired purpose.