Why do none of my box wrench sets have 11mm/13mm wrenches?

You crack me up!

11mm fits the bleeders on my bike.
I carry a 7/16" that I re-labelled '11' because I'm anal.

I had to add a 9 and 11mm socket to my toolkit for the Harley in my sig. first freaking time I have ever needed a 9mm.

Unfortunately I've lately had to use 11 and 13mm often because the super cheap nut and bolt sets i pick up at the autoparts stores use those heads. Even though the same thread and pitch bolts they replace used to be 10 and 12mm.

That's the reason I was gonna mention.