This would not fit even two 14g wires. I don' see the point of twisting one wire. Maybe square wire for jewelry but that seems implausible?
I feel like the hex could be for a rotational driver but may just be a mounting lug that allows indexing in 6 positions.
My thought on twisting (whatever gauge fits there) is NOT twisting multiple wires, but twisting ONE wire.
When you take a wire (especially a hard wire) from a roll or spool, it retains it's shape. One way to solve that is to hold both ends, twist one end, but keeping the wire taught, then switch direction and "untwist" it again. I doesn't make "shapes", it just introduces "different" stresses in the wire, (hopefully not too many, it'll twist right off), which (oversimplified), "releases and redirects" the pre-existing stresses. Those pre-existing stresses being the ones that are induced when the curved wire is pulled straight.
The typical way to do that is to clamp one end of the wire in a vise, and the other end in a power drill chuck. That second part gets fiddly sometimes though. Again, seriously, just speculating here, seeing what fits the "clues"...
It came with these:
Obviously indicator holders. I don't know what kind of base the long segmented one attaches to?
That's a flexible mount, and it's missing stuff. Probably attached to a vise grip type plier, but occasionally on a mag base too. Yes, they are as bad as they look, if they're well made. Otherwise they're worse than they look. One star, do not recommend wasting time on making the missing stuff, as the result is not gonna be a good one. The good part of that holder was the vise grip plier. Or the mag base. What you have is "what's left".
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