I’m guilty of the same
J-Nat Club
- Thread starter maxim
- Start date
Help Support Kitchen Knife Forums:
I think this ohira has enough renge
Greasylake
Thick knives save lives
Greasylake
Thick knives save lives
Testing this aoto I received today
Wabisabi-Ken
Well-Known Member
Got this lump of natsuya today, spent ages grinding out the saw marks but I must say it looks pretty nice! My first real sized jnat, I got my first small jnat less than two months ago and have since been gathering koppas since. This one seems a bit harder and finer than other examples I have seen, it doesn't produce much mud and leaves a pretty good polish on the blade with decent contrast. I have an aizu coming my way shortly and probably another natsuya so it will be interesting to see the difference between the two.
Also does anyone have any suggestions on how to grind down the rough saw marks quickly? I was using a concrete block but it seemed about the same speed as my atoma 400. I also had a go with a belt sander but it clogged up the belt since it was wet from already grinding down on concrete. Also not having stone dust everywhere would be nice
Also does anyone have any suggestions on how to grind down the rough saw marks quickly? I was using a concrete block but it seemed about the same speed as my atoma 400. I also had a go with a belt sander but it clogged up the belt since it was wet from already grinding down on concrete. Also not having stone dust everywhere would be nice
Starting on concrete is probably the best way to go about the rough work. I'd probably add some loose SiC to the mix, but iirc that's not very easy/economical to come by for you. I'd probably "finish" the surface using a harder, finer, stone if you had one, but you can get away with just doing some thinning work on it post rough grind.
P80 coarse silicone carbide sandpaper works like a charm. Kind of pricey though.
Just got my first. It was gifted by a good friend. It's an Ohira Tomae from the Imanishi stone company in Kyoto, was mined in the early 70s, graded by Mr. Imanishi, and was stored in his basement.With Jnats i have and all of you have
Please post pics of your J-nat ! All stones is welcome from all vendors. Also some other Natural stones too !
I have to say it's a fantastic finisher. I use an Atoma 1200 to work up the slurry which is silky smooth. I'm loving this stone.
Attachments
Wabisabi-Ken
Well-Known Member
Holy s#&t that escalated quickly! Went full retard, it all started with a knife and a king stone a few months ago... Now I fear my desk may fall over under the weight of jnats and the constant rocking back and forth from testing them out.
Depends on your use. For polishing, natural stones can do kasumi and burnishing better than any synth. You can get finishes off a natural that cannot be replicated with synthetic stones. For edges, many report getting better tooth at a given refinement level and longer lasting edges, but I'm a touch more skeptical about that, even though I do always finish my edges with naturals these days.
My friend it appears you may be living the dream.
Wabisabi-Ken
Well-Known Member
Somewhere he unwisely turned his back on the much cheaper "hookers and blow” option.
Wabisabi-Ken
Well-Known Member
Yeah when they asked if I wanted to get my rocks off I had better ideas...
Very nice. The three stones in the front what are they? The two light gray could look like aizus
Wabisabi-Ken
Well-Known Member
Yep! Two aizu, the orange is a natsuyaVery nice. The three stones in the front what are they? The two light gray could look like aizus
sunn
Knife Spa Berlin
How about pics of what kind of finish it leaves?
Looks like hideriyama.
She is very photogenic for sure!
sunn
Knife Spa Berlin
I was told it's an ohira. But no proof. I bought it from a very kind guy from another forum. I only sharpen with it up to now, so I cant show a kasumi pic. My mobile isn't good enough to show the blade properly. But it is nice and toothy. No mirror. But best for kitchen knives. It only has difficulties with Ginsan steel. Vg10, aus10 , aogami, ao super are a charm on this one.
sunn
Knife Spa Berlin
This one is big like an aircraft carrier lol.
I bought it with the cryptic description Atago Karasu. That's it. Hard af. Finer than the shiro. This one handles Ginsan knives much better. It handles all steels I have. Feedback isn't as good as the shiro but the outcome is awesome. Kitchen paper slaughterer.
I bought it with the cryptic description Atago Karasu. That's it. Hard af. Finer than the shiro. This one handles Ginsan knives much better. It handles all steels I have. Feedback isn't as good as the shiro but the outcome is awesome. Kitchen paper slaughterer.
Attachments
Did you put that dimension and weight label on it?
sunn
Knife Spa Berlin
No, the seller did.
Greasylake
Thick knives save lives
Stone itself isn't so pretty but it did some fun stuff on my cladding, can we call that wabi-sabi??
I had a bunch of large odd shaped raw jnats so today I made them nicer to use rectangular JNats with a wet tile saw.
It even worked nicely to level a big bench nagura that came with a super wonky chiseled bottom. What would’ve been an hour with an atoma took no time. Photo is actually the second thin slice I took off, another that thickness but half as long came off first.
I’ll make another post when I get home, but broke down a massive aiiwatani, trimmed up two suitas, an aiiwatani kiita, a takashima, a nakayama mariuchi asagi with a nasty line at the edge, an aoto, and the afore mentioned nagura. Also got plenty of finger-stone slices and several nice tomo naguras.
It even worked nicely to level a big bench nagura that came with a super wonky chiseled bottom. What would’ve been an hour with an atoma took no time. Photo is actually the second thin slice I took off, another that thickness but half as long came off first.
I’ll make another post when I get home, but broke down a massive aiiwatani, trimmed up two suitas, an aiiwatani kiita, a takashima, a nakayama mariuchi asagi with a nasty line at the edge, an aoto, and the afore mentioned nagura. Also got plenty of finger-stone slices and several nice tomo naguras.
Last edited:
Wabisabi-Ken
Well-Known Member
Spent some time playing around on some jnats and have noticed sometimes I get a pattern of the mud left on the blade, kinda etched in. Could it have something to do with the stone possibly being slightly acidic or something like that? I try to wipe the mud off as soon as possible but its too late!
I've heard that some stones are acidic and need a baking soda rinse after.
When I smell my chunk of uchi, it’s alka seltzer and gives my nose that tingly feeling. I’d put money on it being a bit acidic.
When I smell my chunk of uchi, it’s alka seltzer and gives my nose that tingly feeling. I’d put money on it being a bit acidic.
