KnightKnightForever
Banned
Which comes first in the progression? I see from the website the oouchi ranges from 6k-8k. What is an ohira tomae generally?
Thanks
Thanks
Oouchi vs ohira tomae?
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Uchi comes in a wide range defined by its softness/hardness identified as either hato or jito with hato being more coarse (typically softer) and jito being more fine (typically harder) generally speaking
Hato will release material and cut while Jito will not and will burnish instead
From my experience an Ohira tomae is finer and harder than a typical hato but more coarse than a typical jito
I want to also point out that a more coarse stone can still be harder and a more coarse stone has the possibility to burnish simply because it’s so hard and does not release any material upon use
Finally, we usually find that hard stones are finer, however this isn’t a rule that can be used in general and better relates to directly similar stones from the same mine and strata
As a result the opposite can hold true and a softer stone can be finer instead of being more coarse which is more typical
In order to burnish the stone must be very hard to not release material and an atoma is needed and all material from the atoma use must be rinsed away thoroughly
Hato will release material and cut while Jito will not and will burnish instead
From my experience an Ohira tomae is finer and harder than a typical hato but more coarse than a typical jito
I want to also point out that a more coarse stone can still be harder and a more coarse stone has the possibility to burnish simply because it’s so hard and does not release any material upon use
Finally, we usually find that hard stones are finer, however this isn’t a rule that can be used in general and better relates to directly similar stones from the same mine and strata
As a result the opposite can hold true and a softer stone can be finer instead of being more coarse which is more typical
In order to burnish the stone must be very hard to not release material and an atoma is needed and all material from the atoma use must be rinsed away thoroughly
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KnightKnightForever
Banned
Thanks for the great response. I decided to cut the uchi out of my general rotation in favor of just jumping from the 2k green brick to the ohira tomae. Can always go back and revisit this if it isn't working out though.
Work up to 5k shapton pro, then 1) fine stone (shiro suita, ao suita, uchi hato, some dark tomae, some aka pin etc) then 2) move to a super fine stone ( nakayama Ohira etc suita, jito, nakayama etc tomae usually yellow or grey)
In this 2) part it’s a good opportunity to burnish if desired.
In this 2) part it’s a good opportunity to burnish if desired.
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user 16756
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uh an oouchi is not an uchigumori (i.e. the stone that comes in hato/jito variety)..............................
it's a mine...
it's a mine...
KnightKnightForever
Banned
Li
I don't know man. I'm just trying to keep my knives sharp.
https://www.japaneseknifeimports.co...-natural-stones/products/oouchi-large-no-base
I don't know man. I'm just trying to keep my knives sharp.
That oouchi and your ohira tomae likely overlap considerably. Lot of variation in tomae stones but they generally align with the description provided by JKI for what it’s worth.
user 16756
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my comment wasn't targeted at you.
more at people who fail the basic "do you posses reading comprehension?" test.
anyone else have experience with these two stones? soft tomae in particular
