1.Precise swaging on the job 2.Re-round deformed tubes and fittings 3.Salvage shorts and scrap to make couplings 4.Handles, tapered expanding pin, and other moving surfaces heat-treated for durability 5.Hand operated, single-stage expander design to expand tubing for fast, accurate joints in soft copper, aluminum, and soft steel tube without using fittings. 6.Free-floating and self-centric expander mechanism. 7. Kit includes 11 expander heads; 1 tube cutter, 1 tube reamer
