A wall mount hanger for box-end wrenches for 3D printing. Designed to fit the following wrench sizes as the slots go: 4 - 4,5 - 5 - 5,5 - 6 - 7 - 8 - 9 - 10 - 11. The slot tips are angled to prevent tools from slipping. Dimensions are in the photos.

I've printed 2 hangers for myself - one from ABS and the other from PETG, but PLA should do to. 0,2 layer height, 100% infill. Both of them seem to be stable and strong enough to carry the wrenches.