Hmm, I have bought quite a few William's branded sockets within the last 3/4/5 months and none of them have yet to show rust or corrosion.
I would expect my William's sockets to be of less quality, or less detail oriented compared to the snap on counterparts.
I agree with all your posts criticizing SO, the ratchet handle, torque wrench head, now the sockets. When I pay snap on prices, I expect snap on quality. Otherwise, I would just buy gearwrench.
I have to say, as I mentioned in a response to your torque wrench, I am willing to bet money this is a "culture" problem in SO's manufacturing facilities.
The tight labor market here in the US, for quite a bit until recently, put all the power in the employees hands. The competition to hire and retain the biggest goofballs who have no business even working at a McDonald's, let alone a production plant, was very real. I'm willing to bet Snap On mass hired the laziest, careless, and most negative "talent" they possibly could just to fill open positions. Poor employees and a poor culture is cancerous and shows when the product reaches the consumers hands, especially when it comes to quality control. Factor in improperly maintained equipment by "engineers" and outdated jigs and you get crooked ratchet handles, torque wrench heads, and corroded sockets reaching consumers.
That said, your posts are starting to become a bit suspect... you have the benefit of the doubt, but that's alot of defective products in a short span of time. I would be contacting SO and informing them of all your recent issues. Maybe they will make it right, or maybe they have a tracking system to hold the responsible employees accountable to prevent future defects hitting the market.