Wingnut bit
thingiverse
Wingnut wrench for effortless trampoline assembly and disassembly. Don't over-tighten the wingnut, or it will snap off. Be gentle when tightening the drill chuck, or you'll ruin it. With care, this tool gets the job done. Would love to see a photo if someone tries this out. https://www.youtube.com/watch?v=v9ommCXllV8
Download Model from thingiverse
With this file you will be able to print Wingnut bit with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Wingnut bit.