Customizable Wrench Holder

I inherited a few sets of wrenches lately, and I didn't have a place in my pegboard to hang them. After looking at other models on Thingiverse, I was able to determine that there weren't any of these out there that would actually fit the wrenches I have. (Up to 1" SAE and 22m Metric box-end) I got out the calipers, sat down, and decided to solve my problem. I liked the idea of using holes on-center to mount the holder (so I can twist-tie or zip-tie it to a pegboard) and I liked the idea of having the wrenches evenly spaced (on center). I also wanted the holder to fit the tools I have with a minimum of fuss. I also wanted it to be expandable in the future just by hanging a new holder with different sizing next to this one. So with this design the wrenches are spaced on-center. The ends of the holder will have half of a space between wrenches, allowing you to butt another holder right up next to it. It also does some rudimentary math for determining mount hole locations based upon your pegboard (or desired mounting method) measurements.