i cleaned the box, at the store.
the best ones, on right. "special steel", Germany, imperial, it does not rust, and nice ring. it is almost 12 and 14?, middle. i broke the second one, straightening.
the screw driver is custom.
the others are all metric, best being the large, heaviest, in the middle. no rust. and nice ring. they are drop forge.
i am still missing a 16 metric.
the chrome planted, make a dull, out of tune sound. though the largest is good metal, sounds ok.