right-handed vs right-hand

right-handed and right-hand both are adjectives.

Word	Noun	Adjective	Verb	Adverb
right-handed	No	Yes	No	No
right-hand	No	Yes	No	No

right-handed (adjective)	right-hand (adjective)
using or intended for the right hand	most helpful and reliable
rotating to the right	intended for the right hand
	located on or directed toward the right