Those are for bending small solid rods and flat bars. Not a possibilty to make a tube/pipe bend. There is one that will make a bend, but it's a PITA, and the bends don't come out to good. Some people have figured out ways to make OK bends, though. It's a hydraulic 12 ton bottle jack type thing. PN 32888
I'm trying to make bumpers with this before JV.
Search the Toy or Gen forums. There's been some good discussionon these.