Low Pressure Welding Blow Pipe is designed for use on all light gauge sheet metal in garages and workshops. The Welding Blow Pipe is an injector type blow pipe which can be used either with dissolved acetylene or with low pressure generated acetylene. The Welding Blow Pipe comes with three detachable swaged copper tips of sizes 1, 3, 7 for mild steel. The Welding Blow Pipe is ideal for light duty application. Low Pressure Welding Blow Pipe can perform welding in a thickness ranging from 1.0mm to 4.00mm.