Identifying and selecting the correct fill rod is an important next step in TIG (Tungsten Inert Gas) welding. Professional hot rod fabricator and welder, Gary Simpson shows us the different types available and explains their differences. He then explains the process to prepare the metal for welding, which includes removing surface contaminates, surface cleaning and final fit. Then he takes us through the welding process using _-inch structural steel plate to create Fusion Tacks, T-welds, Butt welds, and round tubing welds. Gary then demonstrates the process of skip and hammer welding using 20gauge sheet metal, to control metal warp and distortion that is common to many automotive body welding. Finally he demonstrates the versatility of TIG welding by demonstrating stainless steel welding.