We are impressed with the TIG wilder’s performance, and the welds met our expectations of a quality machine. When you’re welding, hold the tungsten electrode just off the material at a 70- to 80-degree angle over the work. If the electrode touches the work material, it may fuse and then it will have to be reground to a point again. Filler material should be held at a 15-degree angle from the work. Create a 1⁄4-inch puddle with the torch and touch the edge of it with the filler material. Then move the torch.