cklashI had saved this discussion from a previous drop: https://drop.com/buy/greatneck-200pc-mechanics-tool-set/talk#discussions
They say good tools should be vanadium alloys, as carbon steel is a lot weaker. That also seems to be what a quick google says too. So just going off that thread, this should be looked down for the alloy. As for anything else, I don't really know, I never ended up looking more into good tool sets.