worktable vs work bench

worktable and work bench both are nouns.

Word	Noun	Adjective	Verb	Adverb
worktable	Yes	No	No	No
work bench	Yes	No	No	No

As nouns, work bench is a hyponym of worktable; that is, work bench is a word with a more specific, narrower meaning than worktable:

Other hyponyms of worktable include drafting table, drawing table, bench, workbench.

worktable (noun)	work bench (noun)
a table designed for a particular task	a strong worktable for a carpenter or mechanic