The Pipe Tomahawks

S5, E39: Four bladesmiths are challenged with forging a canister damascus knife using only steel wool and 1095 powder. If that wasn't difficult enough, they must also forge a gut hook into their blades. Getting this wool welded is wicked work, and the smiths struggle to forge this porous steel. After two grueling rounds of competition, two smiths are dealt a kick to the gut and eliminated, while the final two head home to recreate an important weapon from North American history: the Pipe Tomahawk. One smith's dreams will go up in smoke while the other will claim victory, earning $10,000 and the title of Forged in Fire Champion.