I have never understood the logic of having cheap wrenches in a road box.
Because you can buy perfectly effective wrenchs for not massive amounts of money, and cry much less when you loose them or they get stolen.
My Chinese 6-32mm wrench set was $50 in 2011. I've used the hell out of them since, beaten them with hammers, jumped on them, doubled them up. None of them have failed. There's no question, they are not as nicely made as my snap on flank drive + set or as nice in the hand, but they were around 1/6th the price for a lot more wrenchs. If the Chinese set gets stolen out of my truck or I loose them, I'll shrug.
If had wrenches abused for 11 years and work good, be good candidate to keep in road box, but would be huge loss if lost; can always replace cheap tools inexpensively, but known indestructible wrenches not a minor loss like random cheap tools. What they cost originally not relevant, if they somehow incredibly good, they valuable. Replace stolen with another cheap set, may be good, may not be. Take your chances, sometimes win, sometimes lose.
In general, cheap wrenches not already tested not good gamble to work well and last. In road box where can't just go get another spare wrench, need things can count on. If haven't had cheap wrenches for 11 years and tested already, best probability is get good wrenches, better chance they work good than untested cheap ones. Or, put known good wrenches from home box in road box, and put new cheap wrenches in home box to use and test for years before know can count on them.
I not cry if lose good tool at jobsite where needed. Remember how many times could complete job well, because had right tools and they worked. Remember how much money made doing jobs successfully. Never have wished that I had spent all the years doing jobs with cheap tools instead.
Last year, had wrench in an odd size supplied by a manufacturer to install a piece of equipment. Cheap wrench, broke, no backup that size. Drove half day to nearest town, not available. Had go further, finally found one bigger town. Cost downtime day, cost $1500 or so salary and travel, cost $3000 lost revenue for a good day work. Came home, had my crew guy order 6 good tools that size; 2 to leave at job next time, 2 him and 2 for me. Cost 5% of the lost time to buy 6 good tools, wish we had known to buy BEFORE job, not after. Normally would have test fit install at shop, but machinery drop shipped to location nearer install site for us pick up. So, didn't anticipate odd tool needed.
To OP Question: Something like this; shop around can get less money:
