The Vintage G.A.L. GAGE Co. "HI-LO" Pipe Fit-Up & Welding Gauge is a stainless steel pipe fitting gauge made in the United States by G.A.L. The gauge is designed for measuring and fitting pipes, and it is specifically used for weld inspection and measurement tasks in metalworking. This product is a high-quality tool for professionals in the metalworking industry who require accurate measurements and inspections of stainless steel pipes.