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Old timer at the shop in Wichita told me to quench in warm oil, not cold

Back when I started out about 15 years ago, I was quenching everything in ice cold oil because I thought it would harden the steel faster. There was this older guy named Hank who worked at a shop I visited in Wichita. He watched me dunk a knife blank and just shook his head. He said son you are going to crack that piece or warp it bad if you keep doing that. I ignored him for like two more years until I ruined a batch of six blades in one afternoon. They all came out with hairline cracks and I was out maybe $120 in materials. I switched to warm oil around 120 degrees and I never went back. Has anyone else been given a piece of advice that sounded wrong but turned out to be dead on?
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baker.ben
baker.ben12d ago
$120 in one afternoon? That stings just reading it.
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reese86
reese8612d ago
Ngl @baker.ben, I used to be the type who'd just throw an extra 20 down on random scratch-offs or grab overpriced beers at the ball game without a second thought. But seeing someone actually break down the cost of that impulse spending really hit different for me. It's wild how fast those small decisions pile up, like a $8 coffee here and a $15 lunch there suddenly turns into a whole afternoon's worth of cash. Definitely opened my eyes to where my money's actually going.
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