sander vs drum sander

sander and drum sander both are nouns.

Word	Noun	Adjective	Verb	Adverb
sander	Yes	No	No	No
drum sander	Yes	No	No	No

As nouns, sander and drum sander are synonyms defined as:

sander and drum sander: a power tool used for sanding wood; an endless loop of sandpaper is moved at high speed by an electric motor

Other synonyms of sander include electric sander, smoother.

sander (noun)	drum sander (noun)
a power tool used for sanding wood; an endless loop of sandpaper is moved at high speed by an electric motor	a power tool used for sanding wood; an endless loop of sandpaper is moved at high speed by an electric motor