Penetrating oil is so handy it should beas readily available ... It is thin enough to be applied as an aerosol spray. Because it is nevertheless an oil it is slippery (a lubricant), and it expels ...

What is penetrating oil spray? Poke around in any mechanic's garage for long enough and you'll find a can of the stuff. Penetrating oil spray is an essential tool for rust removal. Applying the ...