For those with a sheet rolling machine, (one upper and two lower rolls), it also could be used for bending round, square,L-shapes etc sections. This can be done by making 3 dies each split in two and clamping them to each roll. Then you could use existing hardware instead of getting or buying new.
John
Good idea. Never thought about the square and angle. I bend round tube all the time in mine. It works pretty good.
Donny