Parametric Nut Wheel
This wheel aims to provide a handy way to turn nuts manually.
the stl file is setup for a 30.3 mm hexagonal nut but you can easilly edit the "Parametric_nut_wheel.FCStd" file with Free CAD to customize it with the size of the nut you have.
Then only export the part body in STL and print it !
Adjust infill depending on the loads resistance you need
I printed mine in PETG but as for the infill, choose whatever filament you want depending on the use you will have.