I have had several different versions of this type of item. Bubble level conduit bending aids.
For example: (Haven't had this one..) http://www.maxistools.com/product/speedset/index.php
But have had a "No-dog". (a few times, experimented with it, lost it.)
And right now have a Greenlee with a simular condiut attacthment, which I don't use. I like it because it is a decent size torpedo level.
Anyway, question to you all is:Are they of any real use to bend conduit?
Does anyone use these effectively using hand benders?
Or is it me? I find that these levels attatched to a coduit being bent, could only work if you also had a level on your bender to match it up to. Right? I seem to make more dog-legs with, than without it. Only time it works right, is with a fixed hydralic bender.