Closed wrenches 7mm through 14 mm.

thingiverse

These are some really cool wrenches I created because I needed more wrenches and, after experimenting with them, now realize that these are actually incredibly robust. Of course they won't compete with your metal wrenches, but they'll handle most household tasks just fine. I printed them in PLA, make sure you increase the scale a bit (I increased mine by 2%) to account for shrinkage. I used a 1.2mm edge and 50% infill. They should be strong enough for what I need, although you could print them at 100% infill for incredibly sturdy plastic wrenches. Plus, there's no risk of stripping bolts! Happy printing! Update: I added an open 9 and 10mm wrench. It works, but it's not as robust.