I got a nice Kobalt USA impact socket set from Cripe today. On opening, it appears to be coated in some sort of sticky assembly oil. I was thinking about using Simple Green. Anything better that you guys know to cleam them with?
I have the same set from Cripe, so I know what you are talking about. I sprayed them off with brake clean, then wiped them back down with WD-40. The oil is there to prevent them from rusting during shipping/storage.