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Question about quenching oil. I used to just use old motor oil but after a blade cracked last winter I switched to a commercial fast oil. Anyone know a good brand that works in cold shops?
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taraw166mo ago
Lol, old motor oil in winter sounds like a recipe for instant blade popsicles. Can't go wrong with parks 50 if you hate cracked steel.
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linda_owens26mo ago
Remember my buddy who tried to quench in used 10w30 last January? He ended up with a knife that looked like a spiderweb. Parks 50 is way safer for that cold weather stuff.
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tyler_hunt726mo ago
So he used actual used oil, not fresh? That's a new level of risky. What was he even making that he thought that was a good idea?
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