AASONS Copper Tube Expander Size 1/4", 5/16", 1/2", 3/8",5/8",3/4",7/8". AASONS

Heat by Friction?Preserves copper’s malleability during the molding process, for a leak-tight fitting. Fits into any Drill - Fit for any rig - work more efficiently than a round head reaming tool than you can imagine ?Usage?Air conditioning installation, open copper tube, so that two copper tube mutual link.(To be installed on hand electric drill) ?Easy to Install?Perfect for installers, no matter if you are just learning or have been doing it ?Material?Made of ball bearing steel, it is practical and durable. The flares will always have the same size and will fit perfectly; The swages present a perfect depth and a tight fitting, that will make the brazing easier, reducing the fatigue stress over the coupling area.