We carry used welders for a variety of applications. Economical stick welders are the go-to welding machines for home shops and hobbyist, since the coated rods eliminate the need for shielding gas. MIG welding is one of the simplest and most commonly used welding processes, with the relatively low cost and versatility making it especially appealing for small businesses. Buying a used MIG welder will lower the cost even further. TIG welding uses a Tungsten electrode to create a precise weld with a clean and finished appearance.