I have a 7-piece hex quick-release drill bit set that needed a holder, prompting this model. It will take standard 6.4mm dia hex quick-change bits. The design would work well to tile together if desired.

I sliced mine with Cura, 20% infill cubic subdivision, with tough-PLA, which is holding up just fine. I may use double-sided tape to hold it down, or perhaps print a denser model just to stop it from sliding around on me.