TIG welders, or Tungsten Inert Gas welders, are tools used for a precise welding process that involves a non-consumable tungsten electrode. This method allows for high-quality welds on various metals, including stainless steel and aluminum. The welder creates an arc between the tungsten electrode and the workpiece, while an inert gas, usually argon, protects the weld area from contamination. TIG welding is known for its versatility and ability to produce clean, strong welds. It is commonly used in industries such as automotive, aerospace, and fabrication. While it requires skill and practice, the results are often superior to other welding methods, making it a preferred choice for many professionals.