http://www.harborfreight.com/cpi/cta...emnumber=39103

I've used that. I can't get precision with it.
For example, if all I want is a 90 degree bend twice in
a sheet of metal to get a U shape I can do it, but I
can't get the legs of the U to be precisely the same length,
except by accident.

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Of course there's a skill factor, and I'll rate mine at 0 with
this tool, so it is quite possible you might have better results.
And, for a quick and easy L bend in light stuff where ~ +/- 1/8"
doesn't matter, it's fine.

Ed

I'm likely to go with something with "fingers" and self-clamping.

Now that Spehro pointed out that Harbor freight is right here under my
nose I'll venture forth and "feel" the merchandise ;-)

...Jim Thompson
I buy a lot from Harbor Freight, especially since we got a local
store.

Bear in mind:
Price is their big selling point. Sometimes it is a work-in progress
and you will need to rework a bit for it to meet your needs!

If you buy something like a metal lathe, a complete teardown will be
worth the effort to clean up, lubricate and understand the limitations
of the equipment. However, you will then understand what a bargain
you have!

John Ferrell W8CCW