0000 steel wool (very fine, available at hardware stores) wet with a light oil, such as Remoil, or 3-N-1, rub blade until arm falls off, then change hands. Flitz metal polish, or white jewelers rouge on a felt polishing bob in a dremel. The PROPER name should not be stainless steel, but stain less steel. It is rust resistant, NOT rust proof.
What we have here is... failure- to communicate.