Uxcell 1/4 3/8 1/2 5/8 3/4 7/8 Swaging Tool Drill Bit Set 1/4 Hex Handle 6in 1 Set

Uxcell 1/4 3/8 1/2 5/8 3/4 7/8 Swaging Tool Drill Bit Set 1/4 Hex Handle 6in 1 SetFeatures: Made of carbon steel with black oxide smooth finish long service life and easy to use. When air conditioning is installed expand copper tube make two copper tube mutual link. It needs to be used with power tools such as hand electric drill saving you time and improving work efficiency. The drill expander for molding tubes using heat by friction way more surface of between the flare and the Valve. Preserve copper malleability during the molding process for a leak-tight fitting.