[Silverback51]

Many years ago the mechanics had lead hammers that they used. One mechanic sanded his hammer to keep it neat. Well the particals got in to his clothes that he wore.

The short version of this story is that both he, and his wife ended up with lead poisoning. His wife was infected from the particals that were in his clothes.

I would recommend not sanding them. Besides, they are cheap. Buy a new one.