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Posted: 5/27/2013 12:20:43 PM EDT
This is my ZT0350, had it for about 6 months now, and I rotate it in every few days or so. I've only used it to open boxes, plastic straps on boxes, and now last week minor pruning on a bush (branches maybe .10 inches in diameter). I don't usually inspect it, but noticed this nick in the blade when I opened it today. WTF? I wouldn't think cardboard and small branches would do this to a $100+ knife. Are all knives like this?
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Definitely not normal, especially being KAI S30V. Someone else play with your knife? That's chipped and rolled meaning it took a high impact to something harder than a branch or cardboard.
I don't suspect a bad heat treat either if you've used it that long and not needed to sharpen it. ETA: Oh, and if it's not a blem they offer lifetime resharpening. It might be too deep, but there's a chance they might take care of it. I know they just enacted it a "you break it, we fix it" policy, but it's only covered by normal use. You might send them the pictures in an email just to see what they say. |
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Not normal per se, but not unexpected either.
In the picture I can see a little heat oxidation on your edge. That is a known thing with ZT knives (them overheating the edge during sharpening). When they overheat the edge it changes the metallurgy, leaving softer and weakened steel at the very edge. Most of the time they overheat, then quench in water. This leaves you with an edge that is both soft, and micro-cracked. That combo will yield seemingly contradictory issues like you see here. Both a chip AND a roll. After you sharpen the knife a couple times you will eventually get into fresh steel, and your issues should go away. |
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