Forgive the bad ascii art. Is there
a "right" way to mount this? Or
better yet a "bad" way to avoid
doing it. I'm mounting it on the
left side of the workbench.

I have a 5" craftsman bench vise
and the holes are only symmetric
about one axis.

The four holes look like this:

x x

x x

Should I mount the wide end to
the edge of the bench or the
narrow end?

The funny thing is the rotation
is 180deg about an axis
like this

x
x
-------------- limits of rotation
x
x

---
rotation 180 deg.

That seems odd as I would
want the rotation to be
over the edge of the bench
and off to either side. But
I can only do that if I mount
it as above.

This can't be that hard....