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Aluminum for corrosion resistance.

Cone with hole welded to straight tube.

Making cone: shear sheet metal to a circle. Drill hole at circle-center and cut an arc out of the circle depending on desired angle of cone. Weld ends of incomplete circle together.


Tube - 1" OD, 0.75" ID, 2" - 72" at Amazonsupply

Sheet - 0.025" thk, 12" x 12" - 24" x 24" at Amazonsupply