V-Drum Sander - 10 - Measuring Rail for Parallelness to Box Right Side
Pearland, Texas
And here is the dial indicator on the right side of the box. Looks almost good enough to me to add some T-Bar clamps and start truing the drum :-) , but I didn't. I went back and got it down to half a thousandth of an inch - bit of a PITA though.