1/2" hex head holder that's definitely not a wrench for holding 1 side of the fastener in place while adjusting truck bearings.
Printed at .25LH, 4 walls, 5 tops/bottoms, 40% grid infill, Pro PLA.
NOTE: this was designed solely for this purpose. If you use it as a wrench instead of for just holding one side in place while the other is adjusted and the “Not a Wrench” breaks, I told you it's not a wrench.
The author marked this model as their own original creation.