drop hammer vs drop press

drop hammer and drop press both are nouns.

Word	Noun	Adjective	Verb	Adverb
drop hammer	Yes	No	No	No
drop press	Yes	No	No	No

As nouns, drop hammer and drop press are synonyms defined as:

Other synonyms of drop hammer include drop forge.

drop hammer (noun)	drop press (noun)
device for making large forgings	device for making large forgings