http://www.use-enco.com/CGI/INSRIT?PMAKA=612-5810&PMPXNO=951680&PARTPG=INLMK3

I bought one of these years ago and it was $40 or so. Gone WAY up but it works well. I marked one leg with 2 3/4 and 3" marks.

The CSP toy for the real serious jobs!!

CB