Overview:

I designed these drill bit holders based on Zach Freedman's Gridfinity system. The 2x2 version can hold five standard small plastic drill bit boxes, and the 2x4 version can hold five small and five medium drill bit boxes. Both versions are stackable.

I also designed a box and plug for the drill that doesn't come with a box. The design was made using Fusion 360 and is fully parametric, so you can customize it based on different sizes of boxes and drills:

https://www.printables.com/model/798817-bit-storage-cases

Print details:

No support is needed.