Hilitand 6Pcs Swaging Tool Drill Bits Set, Professional Manual Copper Pipe Swage Tool Drill Bits Triangular Handle, HVAC Repairing Set 7/8'', 3/4'', 5/8'', 1/2'', 3/8'', 1/4'' Bits - Hilitand8fw9gyruac323

• 【Multi-size】 7/8", 3/4", 5/8", 1/2", 3/8", 1/4", with a variety of specifications, can meet the needs of various work scenarios. 【Stainless steel】 The forging tool bit set is made of high-quality stainless steel, which is anti-rust, and uses a rotating system of hot rolling to shape the tube by friction. 【Design】 When air conditioning is installed, expand copper tube, make two copper tube mutual link. (To be installed on hand electric drill.) 【Easy to use】 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. 【Multifunction】 The hexagonal triangle handle tube expander is used to expand copper pipes and connect two copper pipes to each other. It is suitable for mechanical processing, pipeline engineering, air-conditioning pipelines and other scenes. Ergonomics, comfortable feel, simple operation, even beginners can start quickly.