[Feature]: Finish: Black Oxide, Material: Carbon Steel, Size: 1/4", 3/8", 1/2", 5/8", 3/4", 7/8", Shank type: Hex Handle, Height: 44.5mm/1.75 inches, 45mm/1.77 inches, 49mm/1.93 inches, 50mm/1.97 inches, 61.5mm/2.42 inches, 62.5mm/2.46 inches, Shank diameter: 6.3mm/0.25inch. [Material]: Made of carbon steel with black oxide smooth finish, long service life and easy to use.. [Function]: When air conditioning is installed, expand copper tube, make two copper tube mutual link.. [Easy To Use]: It needs to be used with power tools such as hand electric drill, saving you time and improving work efficiency.. [Heat by Friction]: 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..
