[Edbo]

Scott, a plasma cutter will cut any material that will conduct electricity.

I have a 60 amp ESAB. Pricey, but with excellent performance. When you shop for one remember that they all have consumable parts in the torch. Check prices for the consumables for the models you're considering.

The small 120V units are VERY limited in what they can do, some of them will max out at about 16GA, they can be very slow also.

In my experience, none of them, no matter what size, will actually clean-cut the thickness advertised, they will just melt through the thick stuff. I recommend you decide what thickness you'll want to cut, then buy the next bigger unit.

They are very easy to use. All except some of the very smallest ones will require an air compressor. (a couple of the tiny ones have an on-board compressor)

Ed