"Silvan" wrote in message
...
I ran into a curious situation today. I have some trivial but significant
alignment problem with the left wing of my table saw. I was attempting to
gauge how far out of whack it is by comparing two levels.


Assuming you're talking about similar spans on the level, there is the
waterglass option. Broad glass, compare meniscus, go with the level that's
closest.

Of course, in my house, it's flush, not level, that counts in tablesaw
wings. That only requires a straightedge.