Modified NASA Wrench
I wanted to make the NASA Wrench both tighten and loosen a bolt so I modified to have a socket mount on both sides. I made the socket mount an insert so if it breaks, you can easily replace it. You could also create different inserts for smaller sockets.
See me build this on a Da Vinci Jr. on my YouTube Channel:
https://youtu.be/mVOjwYw9jt8