firmer chisel vs chisel

firmer chisel and chisel both are nouns.

Word	Noun	Adjective	Verb	Adverb
firmer chisel	Yes	No	No	No
chisel	Yes	No	Yes	No

As nouns, chisel is a hypernym of firmer chisel; that is, chisel is a word with a broader meaning than firmer chisel:

firmer chisel (noun)	chisel (noun)
a chisel with a thin blade for woodworking	an edge tool with a flat steel blade with a cutting edge

firmer chisel (verb)	chisel (verb)
	carve with a chisel
	engage in deceitful behavior; practice trickery or fraud
	deprive somebody of something by deceit