saber saw vs sawing machine

saber saw and sawing machine both are nouns.

Word	Noun	Adjective	Verb	Adverb
saber saw	Yes	No	No	No
sawing machine	Yes	No	No	No

As nouns, sawing machine is a hypernym of saber saw; that is, sawing machine is a word with a broader meaning than saber saw:

saber saw: a portable power saw with a reciprocating blade; can be used with a variety of blades depending on the application and kind of cut; generally have a plate that rides on the surface that is being cut
sawing machine: a power tool for cutting wood

Other hypernyms of saber saw include power saw, saw.

saber saw (noun)	sawing machine (noun)
a portable power saw with a reciprocating blade; can be used with a variety of blades depending on the application and kind of cut; generally have a plate that rides on the surface that is being cut	a power tool for cutting wood