On Saturday, April 8, 2017 at 11:07:29 PM UTC-4, Ignoramus9502 wrote:
I got a bit lucky and bought a broken air dryer that had a big copper
coil inside. This is a heat exchanging coil with a copper tube inside
a tube.

http://igor.chudov.com/tmp/coil.jpg

The problem is that it is extremely heavily made and would not easily
cut with a cable cutter. I want to cut it up into pieces and clean to
make #1 copper.

Any idea what can cut it, maybe a circular saw with a small tooth
blade?

Powered saws with diamond-edged blades do the best on almost anything.