Which Quenching Oil is Best for Knives? - Knife Steel Nerds
2021-7-19u2002·u2002Parks 50 and AAA are quite commonly known oils among knifemakers. Parks 50 is a 7-9 second oil, clearly in the 'fast oil' category. Parks AAA is a medium-fast oil, taking 9-11 seconds with the nickel ball test. I bought my oils from Maxim but since then DuBois has an …
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