1 x Tube Expander. To create perfectly expanded tubing for soldering or brazing, you must use soft copper or fully anneal end of tube to be expanded. Cutter range: for 5-22mm copper tube. Tube head (imperial): 3/16", 1/4", 5/16", 3/8", 1/2", 5/8", 3/4", 7/8".
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