Customizable Hex Bit Holder with Staggering

I extended xchg_dot_ca's hex bit holder to allow for staggering alternate rows by half a space, thereby creating a bit more space around the bits for getting your fingers in to grab 'em! It also might make it easier to fit bits in that are very large.

I have included the STL for the version I printed - a 10x10 grid for 1/4" hex bits with slots and the bottom filled in - but the SCAD version allows extensive customisation!