Hex Key Knob

This knob replaces the need for a 4mm hex key. Simply insert it into the screw and turn it by hand. It's perfect for frequently adjusted fasteners, eliminating the hassle of finding a hex key every time. For instance, I use it on my shower doors, which tend to misalign regularly.

Remixed from https://www.thingiverse.com/thing:285832 by user ehm.

Note: I haven't tried printing it yet. It is possible that the size of the hex key head will need to be adjusted to account for printer imprecision. Once tested, I will upload an improved model (if needed) and remove this note from the description.