Back when I was an artilleryman in the military, when we found rust on the cannons we called it “artillery gold.” Little did I know that the artillery gold would follow me in my post-military years; any times there’s a rapid temperature change, or rain, or high humidity, a thin layer of water covers my shop equipment and the rusting process starts. Nowadays I remove that “tool gold” with Klingspor’s SandFlex Sanding Blocks.
The sanding blocks, which are rubber blocks with abrasive throughout, come in three different grits: coarse, medium, and fine. You use ’em just like a giant eraser to remove corrosion from your tools — and you won’t need any additional chemicals in this cleaning process.
The SandFlex Sanding Blocks sell for $4.