I leave some of my tools in my shed which is damp and I noticed that the Craftsman screwdrivers have a white crud on them.The crud scrapes off with a finger nail and is powdery. The plastic handles are shiney underneath the crud as it does not etch them. Has anyone else experienced this and what is the best way to clean it off.I tried washing it off and rubbing it off but scratching it off seems to be the only way at this time.Very time consuming.
No rust at all on the tools.