Got sick of my screwdriver falling out of the slot in my wing hold down screws so made this simple driver. Works with a 1/2" head 1/4" nylon screw head (most US kits).
Generally these are not tightened hard and so the 6mm shaft should be plenty strong enough. Makes putting my wings on much quicker. Used 20% infill but 100% for the head and "blade".

Updated...
Was terrible to use, head was too big and shaft not strong enough.
Reduced the diameter of the head, increased the shaft size and added a bevel to the head (more comfortable on the hands). Used it since and much better...

Tevo

Tarantula Pro

No

No

0.15

20%

No post printing required apart from cleaning off any "elephant foot" for snug fit.
Designed in Fusion 360.