Mine is a lot cruder, lots of maker rail and bolts.. that looks much nicer (oooh, and cheaper too!) They all take 1/8" shank bits, which are fairly standard.

Mine is a lot cruder, lots of maker rail and bolts.. that looks much nicer (oooh, and cheaper too!) They all take 1/8" shank bits, which are fairly standard. I'm hoping that once I can see again, I can use mine to mill out the channels for the tongue and groove on the side of a slide ruler, and to mill out the divisions. A few jigs should make it fairly easy to do.