Tig welders are different from other welder models in that they heat metal through the use of a tungsten electrode. Gas, often Argon, protects the weld puddle from being contaminated by airborne particles. What results is a precise, clean weld on all metals.
Benefits of a Tig welder include its ability to weld a variety of metals and alloys with a clean look which is important if you want the weld to be virtually invisible. With Tig Welding you won't have to deal with sparks, spatter, fumes, smoke, flux or slag either.
This welder can be used horizontally, vertically, and overhead giving you the most versatility of any style of welder available. Argon is the only gas needed to weld a variety of materials, you can also save space in your work area which is always helpful.