Mediocre Quality Control
I have had the chance to use a few of the set on an equipment maintenance job. My main concern is that the actual size of the crows foot varies too much. For example, the 27mm is actually 28.25mm. A few of the others that I checked with a micrometer were at least .5mm to .83mm larger then the stamped size. A good set of open boxes are about .3mm larger then the stamped size. If you need exact size, you risk turning the corners on your bolt/fitting.
V8 Tools® - 17-piece 1/2" Drive 20 to 46 mm Mirror Polished Open End Crowfoot Wrench Set
