mike this is a big problem for me also,i have a 8ft basement under my shop, and it causes lots of moisture. I,ve used dehumidifiers but running them 24/7 adds up. I use camphor blocks in Dwr,s boxes ,cabinets, tool boxes, drill bit cases, with clamps,just about any where there is steel. You can get them at most drug stores, but they can be a little pricey ,about $20 to $30 dollars for about 50ps.they stink like the old vicks rub when we where kids, but they work ,and bring back some old memories of Mom,
customcabinetmaker