Rust doesn't ask permission. If you run a garage shop or own cast-iron machine tools, humidity will find the bare metal eventually, usually faster than you expect. Fluid Film, a lanolin-based corrosion inhibitor well established in automotive and agricultural maintenance, has found its way into at least some woodworking shops, with users applying it to lathe ways, band saws, and drill presses. The short answer to whether Fluid Film prevents rust on tools: yes, on the right surfaces, under the...