sanding with WD40

Blade sanding for me (just water) can take from 15 min to over an hour depending as
James stated above how good the grind and finish grind is in the first place. Also my
folders are going to take less time than say a 10" Bowie.
Ken.
 
Mist coolants for milling machines, such as Koolmist, can be used to advantage when sanding knife blades. Water based coolants possess all the desirable traits needed when sanding blades.
I use it because it is not oily, therefor much cleaner to work with, has rust inhibitors in it. It keeps the paper from clogging and pools the metal that is being removed and keeps it suspended so it can be removed easily.
I buy it by the gallon; it takes 1/4 cup of the concentrate, added to a gallon of water for sanding. I keep it in a spray mist bottle.

Mist coolant liquid is far superior to any of the tapping or cutting fluids I have ever used.
 
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