Answer: swager

AnswerCrossword Clue
swagertool, die, or stamp for giving a particular shape to metal on an anvil, in a stamping press, etc.
swageriron block containing holes and grooves of various sizes, used for heading bolts and shaping objects not easily worked on an anvil
swagerto reduce or taper (an object), as by forging or squeezing
swagertool for bending cold metal to a required shape
swagerone that swages (to shape with a hammering tool)
swagerto bend or shape by means of a swage