Preciva Caliper+Radius Gauge Gridfinity (Stacking)

I recessed the caliper to make the box stackable, added nicer CR2032 holders, included a slot for this simple radius gauge, and removed the holder for the awful little screwdriver that comes in the package. I also tightened the fit slightly and relaxed the curve next to the ON/OFF button, which sometimes caused the caliper to turn on when the box jiggled.