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Old 12-26-2017, 08:04 AM   #1
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Chinese ZT (knockoff)

I found this Chinese knock-off of a Zero Tolerance knife on-line. There are a number of ways to tell that it is a fake, such as no serial #, the blade pivot is rudimentary with no ‘spring’ action to it, the grip screws are star instead of hex, and a few others.



It was cheap and the steel seems to behave as S35VN, which is what they claimed it to be. I know use it as an office/truck beater. The last time I sharpened this one, it was for a functional edge, so nothing further than a 1500 grit diamond plate, which still left it ‘shaving’ sharp.

So today, as it’s dang cold outside, I’m going to play around with improving the edge using stones only, up to a 20k Suehiro, which is a 0.1micron finish. No stropping.

So let’s see where this ends up.
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Old 12-26-2017, 09:15 AM   #2
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So this is at 1500grit, off of a KME Gold Series diamond plate.



Still quite a bit of scratch pattern obvious to the naked eye.
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Old 12-26-2017, 09:18 AM   #3
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And this is off of the Chosera 10k stone.



Much harder to see the scratch pattern by eye. You have to get the light just right.
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Old 12-26-2017, 09:19 AM   #4
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From here we step up to the Suehiro 10k, which Ken Schwartz says performs more like a 15k.
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Old 12-26-2017, 10:37 AM   #5
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Nice walk through. My ZT0909 is also S35VN, and it's worth the problems to polish it.

Were you thinking of stone polishing it or using paste and glass?
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Old 12-26-2017, 10:53 AM   #6
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Here is where I am stopping for the day, about 75% satisfied with the Suehiro 10k. I will likely spend a bit more time with it in the morning.


Chico, I am going to TRY to stick with stone polishing it, just to see how the edge turns out.
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Old 12-26-2017, 11:02 AM   #7
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I double-clicked the picture. It looks nice and even, no discrepancies in the reflection.

I have a couple of 10K Schwartz stones, myself. The ZT0909 needs a touch up. For example, one section looks foggy, and I have some whisker marks.

I'll give this 10K polishing a try once my cold lets up. Nice job.
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Old 12-27-2017, 08:03 AM   #8
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Spent a bit more time at 10k this morning before stepping up to 15k. Ken Schwartz states that this equivalent to 1.0 micron.



I will spend a bit more time at 15k, then on to the final stone, the 20k Suehiro, or 0.5 micron.
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Last edited by Jflytle; 12-27-2017 at 08:06 AM.
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Old 12-27-2017, 08:57 AM   #9
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Sometimes, the problem with hair whittling sharp is getting the hair to sit properly in the picture. Anyway, here is the final edge (for now). This is after spending not an inordinately long time at 20k.



Now on to a couple of daily users, and then maybe some more playing on a Pakistan Damascus fixed blade.
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