I've inherited some old craftsman screwdrivers that I would like to clean up, but don't know how. They're good screwdrivers and were my granddad's, so they're worth the effort to me. But, granddad's tools were just tools and and along as they handle and tip worked he wasn't worried with looks. On the other hand, I've always liked to clean my tools up before putting them back. So...any suggestions on how to clean years of paint and grime off the plastic handles?

