I have used the unit as shown by FLOYD,
the issue is that it requires a straight area of the tube that is about 3 and a half inches long, so, any bends will have to be formed after the flare is made.
the other units as shown can usually get up a bit closer to a confined bend radius.
I have a "former" that uses a large hex wrench to roll the bead.
but I do not have a photo, I do not know what company made the unit.my dad had it since the mid 1940's.