I based the design on a model by georgeprout on thingiverse - I added space for two more bits
Original stl and SCAD file here: https://www.thingiverse.com/thing:4395136
This is a bit holder for 6 standard quarter-inch bits for a DeWalt Impact Driver or DeWalt drill. You will need a M3 x 12mm screw to attach this to your drill / driver. I also recommend a drop of medium or low strength threadlocker like loctite
Please note: there are different models for the drill and for the impact driver.
Affiliate Links:
The metric nut/bolt kit I use: https://amzn.to/3ClqYuG
My preferred low strength thread locker (loctite 222) https://amzn.to/3X9vc1Z
The author remixed this model.