The one I borrowed years ago was a head and guide unit that used a large electric die grinder for power. The die grinder was another breaker-popper.I dont have a bevel machine...they seem to cost like $2000 .......if I want to bevel thick plate for weld ,I use the oxy torch.
Don't forget to upgrade the wiring to 12 AWG, too. 15A breaker usually uses 14AWG.
If you're welding a lot of heavy metal, esp. plate, look into a dedicated bevel grinder. It'll make your life more pleasant and your welds more uniform. I don't own one, but a friend lent me one when we were building out the brewery and doing a lot of heavy metal.
