Regarding FACOM and many others, those days we have the problem that the manufacturing in China, it does not produce the same results as it was far back where those brand-names gained publicity and fame.
Generally speaking it was known 20 years back some facts as public saying.
1) The American does not play when he makes hand tools.( quality and strength but bulky)
2) The German always had high quality steel and experience. ( quality and strength )
3) The Japanese is capable with half the portion of the metal, to make it strong enough and optically superior.
4) Made in France ? They was in the fourth place in this race.
5) Do not trust the Italian when he plays with metal.
6) Made in East Europe or Russia = Experimental technology
7) The Greek is the best Beta tester
(He uses everything as to was a hammer too.)
From all those sayings nothing stands today, or very few.
When the conversation comes down to isolated screwdrivers, the most freshest marketed series are the most safe to use.
Which naturally they should be selected among the know brand names.
My own father as cars electrician were very demanding regarding the quality and strength of hand tools,
and actually the 55% of the tools that I own today are my inheritance from him.