Made of Copper in silver tone.Use for Hydraulic Tube Expander.. For use with Soft Copper, Steel, Aluminum, Brass tubes.. The special cone eccentric revolution allows the internal opening gradually regular flare without effort.. Preventing tube from sliding down. keep the flare face to be smooth, uniform without scratching.. Eccentric cone will be rebound automatically after the work is finished, make the idle top head in revolution again for 1-2 times and have the flare face in friction to make it prettier..
