SWAGING TOOL -- Air conditioner copper pipe swaging tool comes with 6 piece of pipe expander drill bits and these manual copper pipe bits usually use heat to form more surface between the bell mouth and the vallve through friction to form the rotating system of the pipe. 6 DIFFERENT SIZES -- There are 6 swaging tool drill bits which have the common HVAC pipe diameters: 6.35mm; Overall Length: 59/57/53/51/49/47mm; And these 6 different sizes are available, you can choose according to the actual needs. FIRM & DURABLE -- This portable Hvac swaging tool set is made of High Carbon Steel, which is durable, not easy to break and wear-resistant, and it can withstand long-term use. The forging stopper will provide a large swaging depth to achieve a perfect fit. HOW TO USE -- When you install air conditioning, expand copper tube, make 2 copper tube mutual links, and make the pipe drill bit to be installed on hand electric drill, then you can easily to finish you work. Suitable for hard and soft copper standardized, easy to braze swaging set. OPERATION -- The pipe repairing swagging bit is made of reliable material and will fit well with your pipe; What's more, this swaging tool drill bit set has suitable depth and tight fit, which will make brazing easier, thereby reducing the fatigue stress in the connection area
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