I just ordered the TEKTON 3/8 Inch Drive Deep 6-Point Impact Socket Set, 37-Piece (1/4-1 in, 6-24 mm) on Amazon, it was delivered with each socket heavily lubricated (with what looks like oil). There was a cardboard piece in between both ends of the case, and it was pretty wet. You can find the data sheet for it here which shows the set is made from Chromium-Vanadium (Cr-V). Does this need to be lubricated or stored lubricated? Ths spec sheet above also says,
- "All pieces have a corrosion-resistant manganese phosphate coating."
It sounds all the more like this shouldn't be neccessary, but I'm wondering why they did it then.