Hex bit holder, gridfinity 2x1 bin.

Print with 10% gyroid/grid infill and no support, slicer might suggest to fix an error in the .stl (if so then let prusa slicer auto do that by a simple right-click).

It fits the Gridfinity universe, it stands on it's own on any flat surface or you can hang it on a peg board or wall with this gridfinity 2x5 holder. 

I've made other hex bit holders ( hex bit holder 1x2 bin gridfinity) (hex bit holder) available here at printables.

MODULA - a module based tool holder system

The idea is a adapter plate (metric/imperial/plain) that attaches to peg board/wall, then a module snaps on to this adapter with dovetails. 

Why use an adapter? Everyone can share the modules worldwide, and just adjust the adapter plate for their environment.

This module attaches to the adapater biltema  or the vanilla adapter available here on Printables. The vanilla adapter can be modified so it fits wherever You need to hang these modules.