mechanical drawing vs drafting

mechanical drawing and drafting both are nouns.

Word	Noun	Adjective	Verb	Adverb
mechanical drawing	Yes	No	No	No
drafting	Yes	No	No	No

As nouns, mechanical drawing and drafting are synonyms defined as:

mechanical drawing (noun)	drafting (noun)
the craft of drawing blueprints	the creation of artistic pictures or diagrams
scale drawing of a machine or architectural plan etc	writing a first version to be filled out and polished later
	the craft of drawing blueprints