3-IN-1 TIG ARC Clean Welder Machine. 3 Modes, Portable Handle and Effortless to Use. Are you ready to weld metals together and let your creativity run as you wish. Well, you are in luck. The multi-functional 3-in-1 TIG/ARC/Clean professional combo welder is capable of welding stainless steel, iron, mild steel, copper, and nickel. These functions allow control of the welding process at a professional level from start to finish. It is perfect for any home project, for example, repairing your bedstead, snowblower, saw table, and other household equipment via its outstanding 60% duty cycle. It is also ideal for DIY programs. Take your welding projects anywhere, thanks to our lightweight welder machine, and start welding today.