Thread: First jnat finisher incoming...

Not to exciting for some, but an entry level jnat should be fun since I've never honed on one.

The Ozuku Asagi (Koppa) is supposed to be a fairly slow, hard stone. I think it will work well since I'd like another option after my 8k. I don't have any Nagura stones currently, but we'll see how this does on its own first.

tab,

I too have recently got into JNat finishing - I got two (2) Shoubudani Asagi from Maksim at JNS. One is a bench stone, the other a '100' size, good for palm holding.

If my stones are anything to go by, you will have fun flattening them (I used 120 'grit' silicon carbide paper, followed by 220 & 325 (well worn) 'grit' DMT plates).

I sealed the bottom and sides with clear nail varnish.

This afternoon, I am going to hone some razors on the Asagi '100'. (I also bought the Asano 3 nagura set, and a Tsushima Black nagura and one of Maksim's 'Tomo nagura Extra'))

In the absence of a suitable paired stone ('tomo nagura'), you can raise slurry with a (preferably well worn) DMT 325.

The use of DMT to raise slurry is somewhat contentious, but needs must sometimes

Some good informations here :

Jnats, Tomo & Mikawa Nagura & Straight Razor Hones | TomoNagura.Com

Japanese Natural Stones Toishi

Have fun

Best regards

Russ

Originally Posted by PhatMan

tab,
The use of DMT to raise slurry is somewhat contentious, but needs must sometimes

I have never had much success finishing with a DMT slurry , although it might have something to do with each particular stone but better that nothing.

Tab,

FWIW, it seemed like I wanted to use way too much slurry when I first tried an asagi. It gave smoothness, but less sharp than it should have. You'll have to go all over, trying methods with it, but I've not seen a thick slurry bring anything to the party. Lately, I've run from a y/g thuri to the asagi with clear water. 'Different feel from my prior methods, but pleasing.

Should you wish to connect & compare notes, try my asagi or other stones, PM me. I'm out in Columbia Cty.

Originally Posted by pinklather

Tab,

FWIW, it seemed like I wanted to use way too much slurry when I first tried an asagi. It gave smoothness, but less sharp than it should have. You'll have to go all over, trying methods with it, but I've not seen a thick slurry bring anything to the party. Lately, I've run from a y/g thuri to the asagi with clear water. 'Different feel from my prior methods, but pleasing.

Should you wish to connect & compare notes, try my asagi or other stones, PM me. I'm out in Columbia Cty.

All of this sounds promising. I hadn't planned on using slurry stones to start, and I don't have any so that will be easy.
Getting the stone flat may be a chore but I'm sure I'll get it there within a day or so of receiving it.

I'll take some notes and we can trade some notes when I have a little data and time on the stone. Thanks!

I have one from the same source, and if yours is as hard as mine, slurry will be necessary or you may well get burnishing instead of cutting. Mine will not self slurry at razor pressure, maybe not even at knife pressure.

These stones varied a bit from sample to sample, so what I said may not be true for your particular stone, but in general the stones being sold as Ozuku are hard.

Mine is an excellent razor hone BTW.

Cheers, Steve

Years ago, I got a piece of ozuku koppa from CKTG and used it. IT was super hard and as fine as any stone I ever used, but it was hard enough to really need a nagura rotation. I cut it up for naguras, and I'm older and wiser now, but back then didn't know tomonagura should be soft enough to yield to another stone.

I still have the naguras, I crosshatch the surface of them with an old hacksaw to keep the particles being released.

I've had better stones overall, but not for $70.

I have what I'm pretty sure is an Ozuku, and it is ridiculously hard. Approaching Ark level at least. It puts on a very nice edge with Tomo or light diamond plate slurry but on straight water I'm pretty sure it only burnishes. It brings up a mirror awful fast that way. Never tried shaving with an edge finished on straight water with it yet though.