bench vise vs holding device

bench vise and holding device both are nouns.

Word	Noun	Adjective	Verb	Adverb
bench vise	Yes	No	No	No
holding device	Yes	No	No	No

As nouns, holding device is a hypernym of bench vise; that is, holding device is a word with a broader meaning than bench vise:

bench vise: a holding device attached to a workbench; has two jaws to hold workpiece firmly in place
holding device: a device for holding something

bench vise (noun)	holding device (noun)
a holding device attached to a workbench; has two jaws to hold workpiece firmly in place	a device for holding something