MIG (metal inert gas) welders supply power to compatible MIG guns to create an arc between a metal workpiece and a consumable electrode wire held in the guns. The arc melts and fuses the workpiece material and the wire material to create a weld. Also known as wire-feed welding, MIG welding is typically faster than TIG (tungsten inert gas) welding. It also produces cleaner welds and is better suited for long welding tasks than stick welding. MIG welding can be used on workpieces with a wide range of thicknesses, making it suitable for manufacturing and auto repair.