Ridgeyard Pro Hvac Swaging Kit Air Conditioning Refrigeration System Copper Tube Expander Tool W/ 7pc Pipe Expander 3/8"-1 1/8" Designed to expand tubing for fast, accurate joints in soft copper, aluminum and soft steel tube without using fittings. Made of high-quality hardened steel,it is solid and durable. Long handles with cushion grip for comfortable leverage.Easily Swage on the job. Comes with 7 dies ranging from 3/8" to 1 1/8" O.D. for soft copper and aluminum tubes in different sizes. Salvage shorts and scraps to make couplings. It also includes a deburring tool for cleaning the interior and exterior of tubing.