Working on old Raleighs and my Claud Butler tandem has forced me to modify wrenches to fit all the weird nuts and bolts. Metric or mainstream SAE tools were never a good enough fit. Resilion brakes have a .325 hex nut that just recently annoyed me enough that now I have a Resilion wrench (cheap 5/16 wrench that could be filed out to fit. Real tools don't respond to files nearly as nice as flea market tools) Not enough room for a small adjustable, which works, but who wants to do that?