You can change any dimensions via Fusion 360 user parameters to fit any existing drill model. If you don't have fusion 360 please contact me with your drill dimensions so I can change the model to fit these drills as well.
All comments are welcomed as I'm a newbie and try to learn much as I can.
EDIT: Added a STL & G-Code (fast) for Ryobi one+ R18DD3 cordeless drill.
The author hasn't provided the model origin yet.