I agree 100%.
I had a mac 26 gallon 7.1CFM 120v. Which is just a Re-branded belaire. Needed a 20A circuit, would pop a 15A. I ran it for years, ran impacts, grinders, ratchets, air hammers, cutoff wheel, nail guns, etc. The only two that taxed it were the cutoff and die grinder, but you could...