Metal cuts great. For someone who has never done this before, it is enough to burn a couple of electrodes and an understanding comes of what and how to do. Where to play with air, where with power, the main problem is the ignition of the arc, after the second burnt electrode, I came to understand how to do the ignition correctly and achieve a vertical, even and beautiful cut of the seam at different metal thicknesses. Thin metal cuts like butter, but you have to tinker with thick metal . When something goes wrong - at first it seems that the device is defective))) and you are so ingenious and correct, you do everything right))) It makes sense to immediately buy copper nozzles and galvanized on Ali Express in a week - two will be delivered, and it is also worth buying a burner attachment (PT 31) on wheels, it is good to make straight cuts with it.