by THE SAW DOCTOR
Wd 40 is no good for long term storing of your tools as WD40 evaporates.
Oil is a good product to use. What type of oil you ask?
A good oil is sewing machine oil as this is a thin type of oil that won’t make your saws or tools too oily as you only want to smear the surface.
Just squirt some oil onto your saw, then wipe over with a cloth and you're done!