The low quality Pittspoop metric wrenches are a godsend. The sloppy tolerances are actually Whitworth..lol. Also, asian made wrenches are only good to modify for a few special applications and then throw away. For car work, often done if not wanting to spend $50 or so from Snap-on or wait from another tool house.

Seriously though, I'd much rather buy a set of used and vintage Whitworth sized wrenches online vs. the price of new. Fraction the price and much higher quality.