Swage
WordNet
noun
(1) A tool used to thicken or spread metal (the end of a bar or a rivet etc.) by forging or hammering or swaging
verb
(2) Form metals with a swage
WiktionaryText
Noun
- A tool, variously shaped or grooved on the end or face, used by blacksmiths and other workers in metals, for shaping their work.