Bob Engelhardt writes:

The jaws on this wrench are not parallel:

http://home.comcast.net/~bobengelhardt/wrench.jpg

Specifically, the face of the movable jaw is perpendicular to the
"ways", but the fixed face is not. But they aren't sprung or worn that
way. It seems that it was made like that. But why? Just plain poor
quality? But that's *really* bad. It's an old wrench, not
Chiwandian. It says drop forged, if that helps.

It surely looks like one of the lowest quality tools I've seen -- the
imperfections on just about every surface border on bizarre.