A Cold Chisel is widely used for manual cutting and shaping. Like iron, they are forged, shaped, and left to cool before you can use it. Without this tool, construction wills slowdown. It is a tool that can cut through "cold," i.e. unheated, metal. This is in comparison to other blacksmith tools that are typically used only after the metal has been heated. Cold Chisel is a tool made of tempered steel used for cutting cold metals, meaning that they are not used in conjunction.