Super Slim Bit Holder

Holds a Hex Bit for use in a narrow space. Consideration of torque in ratio to filament type and print settings (layer height, shells, infill %, infill direction, etc) is recommended, otherwise stretching of the thinnest area will occur (as seen in the photo).
I didn't know whether I should make the piece taller or longer so I added dowel pins inserts (2mm wide) so that I could expand upon the project if necessary.