Paper Towel Challenge

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I was sharpening some knives yesterday, mine and other people’s, and decided to do some proper testing of this with different synths. As I’ve said before: I find it easier off certain types of fast natural stone, or mid-grit synths. Which was confirmed again yesterday.

I wasn’t able to easily get completely clean drops off stones 3k+, but go down to a King 800 and…

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It obviously isn’t completely necessary to be able to do this kind of thing. But the above shows why it’s not a bad test for a kitchen knife either. The edge needs to be very ‘sharp’ and properly deburred, but it also needs teeth.

If using synths; I’d say the sweet spot for me is around 800 to 1k, give or take.
 
I had decided I suck at this after trying a couple times with SG4k and SP2k.

Last week I had to do an edge repair on this Y Kato AS 160mm petty. Breadknifed and quick edge set on a SG220, then a few strokes a and casual deburring on an SG500. I decided to do a quick test before going higher but after this just called it a day and stuck it back on the rack. Something about Y Kato’s AS just takes a really great edge - this is also the only knife I was ever able to achieve HHT3 and that was also by accident.


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This would certainly correlate with my experience of synths vs paper towel. And so perhaps actually it wouldn’t be a particularly good test for people who prefer higher grit / more polished edges. It’d be interesting to hear your take on this…

Which do you prefer in proper use? The lower grit version that will cut paper towel, or the higher grit version that struggles?
 
This would certainly correlate with my experience of synths vs paper towel. And so perhaps actually it wouldn’t be a particularly good test for people who prefer higher grit / more polished edges. It’d be interesting to hear your take on this…

Which do you prefer in proper use? The lower grit version that will cut paper towel, or the higher grit version that struggles?
It really depends on the knife.

My fish blades get the full near-mirror treatment.

My “fine work” specialists get 5k (Suehiro Cerax; great stone once the interminable soak is done) and maybe a light stropping.

Meat cutters and German/Swiss etc. are done off my Shapton 1k.

My cheap 3Cr13 utility/cardboard beater is good to go off a 400.
 
This would certainly correlate with my experience of synths vs paper towel. And so perhaps actually it wouldn’t be a particularly good test for people who prefer higher grit / more polished edges. It’d be interesting to hear your take on this…

Which do you prefer in proper use? The lower grit version that will cut paper towel, or the higher grit version that struggles?

In use I’m not really picky and seemingly not very discerning. I’ve tried a nagura a few times and can’t say I notice much a difference vs the SG4k. I really should try the SG1k or SP2k as a finisher at some point.
 
@Delat was flexin some paper towel cutting skills on the gram over the weekend.

Was great fun to see his enthusiasm :popcorn:
Only possible because my wife is out of town! Funnily enough the first take was the one I used but then I tried 10 more times for a better take with no luck. Here’s the aftermath I didn’t post, and the pile in the photo is already smaller by about 30%- I have to use them all up before she gets back!

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Still having fun with this challenge, only have toilet paper left though - just having had some fun with a slow session from rough to fine after microchipping. I rarely sharpen truely assymetrical, but i feel like this grind demands it. For once i used only synth + bare leather.
 
Simon got too dull to cut magazine paper, did a quick reset with chosera 800, 3k, aizu. It’s alllright, I’ll probably spend more time and do it proper starting at sg500, knife has strong potential. I can’t find the daily sharpening thread…

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Relaxed tonight putting new edges on a Hyde 270 and TF 280 (Both Aogami Super). I’m still amazed and baffled at the heat treatment that TF is able to do on AS. These knives felt extremely different on the same stones.

JNS 800, Natsuya, Mystery Hard JNAT

 
How would you describe the difference in feel? Any noticeable difference in how the edges perform for you?

(Also thank you for keeping this thread alive - I've been doing mostly razors, need to contribute back here)
TF Aogami feels much much harder on stones and is much toothier on the same stone progression. If you like toothy, it felt almost scary coming off Natsuya but toned down a little bit after some light swipes and passes on the fine Jnat
 
This isn't really meant to be anything specific. Maybe it will become something specific. @cotedupy said something very important somewhere about how a lot of our differences in sharpening come from nomenclature. When I say I deburr after every stone it means something different to a lot of people. Because I really mean that I only sharpen on one stone and then I deburr on one stone. Usually I use a crystolon coarse and then deburr on a washita, a coticule, a hard arkansas. Something very high finishing. I find that the combination of very coarse with very fine deburring works very well for me. So that is what I am submitting as the first entry in the paper towel challenge. Make a video or take some pictures. Only a competition with yourself, have fun. Please keep comments naughty.


nailed it
 
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