Printable combination wrench with angled box end similar to a commercially available combination wrench. In metric sizes, although the OpenSCAD file will happily take whatever numbers you put in it. There are some notes in the file about which variables need to be changed and where depending on the size of the wrench - this is basically trial and error, there are decent starting variables given.

STL files are pre-generated in 15, 13, 6, and 3mm sizes. I can upload other sizes if necessary.

Slice with around 1mm wall/top/bottom thicknesses.
At least 10% fill depending on your printer and intended application. Support touching build platform.

ABS is probably ideal for this, although I used PLA just fine. You might have to adjust the settings when you get to the box end as the smaller wrench sizes are less cooperative.