DeWalt drill driver attachment
I mixed several models to make a new one where you have 6 storage spots for the bits.
There are two STL files, one for bits that are 6.3mm wide and one for 6.5mm.
The FreeCAD file has a spreadsheet where you can alter the height of where the bits go and the width of the bits.
I don't have access to a printer right now so this model is marked as in progress.