This is a stronger alternative method to couple a drill to the Filament Spool Winder (By Miklos Kiszely) found here:
https://www.printables.com/model/407688-bambu-lab-p1-x1-x1c-x1cc-filament-spool-switcher-w
The original design coupled the drill to a small printed shaft that is easy to shear if the drill isn't held square.
This coupling reduces the likelihood of shearing the shaft as it has more give if you fail to hold the drill square.
This was a quick design that serves its purpose but uses more material than needed. Prints without support, strong enough for me with 3 walls and 20% infill.
Link to Onshape CAD: https://cad.onshape.com/documents/a9cce54d96d5030d4752bfb0/w/d34e0692c91c13ac431473d0/e/c0d50f84990e04b497c6f660?renderMode=0&uiState=6584927f608cee520d935b74