Where would one get a 17/64 box wrench?

That's why my W/C's are 1968 models:they fit perfect, and the bleeders are 100% SAE.
Up here our government, in their infinite wisdom stuck us with metric a couple of decades ago. I really hate having to have two tool boxes. And now with all the offshore stuff we never know what wrench to grab. And what's with the multitude of oilpan drainplugs? Every car I own now requires a different wrench. Remember the 70's? One wrench would cover almost everything. 1/2x5/8,offset, double box. Now I have to scoot under there with a handfull of wrenches;including the 1/2 x 5/8, plus a 3/4, a 7/8, and of course 13,14,15,and 17mm. And evolutionists tell us we are ever evolving into smarter people.I call B.S.