I need a couple of custom pieces for a trike project I'm working on (details to come later). What I need are a couple of tubes that are flattened on the ends--like the truss rods on a Schwinn style springer. (come to think of it, I need a couple of those, too) What is that called & how is it done? I am wondering if it's an affordable tool & an easy process or something best left to a pro metal shop or maybe one of you guys. It doesn't have to be pretty, but better & more precise than if I just beat it w/a hammer & dolly.