By eHow Home & Garden Editor
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A Tungsten Inert Gas--or TIG--welder uses a non-consumable tungsten electrode, which acts as a torch, and melts the metal. TIG welders are useful when welding 2 thick pieces of metal together without having to use a filler. TIG welders are handy in motorcycle shops and garages for welding the frames of bikes and cars together. With the following steps you can buy a TIG welder of your own.
eHow Home & Garden Editor