pipe vise vs pipe clamp

pipe vise and pipe clamp both are nouns.

Word	Noun	Adjective	Verb	Adverb
pipe vise	Yes	No	No	No
pipe clamp	Yes	No	No	No

As nouns, pipe vise and pipe clamp are synonyms defined as:

pipe vise and pipe clamp: a clamp for holding pipe that is to be cut or threaded

pipe vise (noun)	pipe clamp (noun)
a clamp for holding pipe that is to be cut or threaded	a clamp for holding pipe that is to be cut or threaded