Simple Setup Gauge

This setup gauge is made from a piece of hardwood ply, a steel
ruler, a piece of lexan and a rare earth magnet. This is great for setting up
router bits and dado blades and has many other uses besides. I had a couple
6" steel rules laying around as well as some plywood and lexan scrap so the
only cost was for the magnet, It cost me $1.79 at radio shack.