I had a tight space I needed to turn an M3 nut in so I hand cut one out of aluminum. The result was so ugly I decided to model a template and try again. What you see here is the resulting scope creep.
Each wrench is sized to be slightly thinner than the matching usual ANSI standard nuts for that size. Printed plastic isn't going to give you a lot of torque. However, I also used these as a template to cut/file a wrench out of thin aluminum bar.
Included are both standard 15 degree angle and straight wrenches for each of the sizes.
The author marked this model as their own original creation.