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Thread: Suehiro Stones

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    lobeless earcutter's Avatar
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    Default Suehiro Stones

    There’s probably a few of you, us, who know of the Suehiro Gokumyo. A great series of ceramics ranging in grits from 600, to the cherished 20,000.

    https://www.suehiro-toishi.com/en/category/gokumyo/

    It was the 20K that had me visiting thier site, looking at thier stones when I ran into thier dual stone series.

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    https://www.suehiro-toishi.com/en/category/dualstone2/

    I threw down about ¥16,800 ($150USD) and got the holder, the 800/6,000 combo, and the 500 grit diamond. Considering the stones are only ~ 6” x 2”, that’s not exactly free. But it’s not bad either. The fact that I absolutely don’t need em is what makes them so expensive lol!

    But that’s the thing. A ceramic that’s so dense you can use oil on it? The 20K can wait.

    The rumor is that the stones grits are correct, but act more fine. Who knows? They do have larger stones up to 8K which would be better suited for honing razors, but I though I’d try these small ones in the kitchen and on pocket knives first. If I don’t like em, I can always give it to some freshly minted kitchen aficionado.

    Truth is, I’m just fascinated by these stones! The description baffled me and amazed. I had to see.

    Anyone know anything about them - I probably should have asked before buying lol.

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    Senior Member Robini's Avatar
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    I do love the 20K!
    coachmike and earcutter like this.
    Rich

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    lobeless earcutter's Avatar
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    Quote Originally Posted by Robini View Post
    I do love the 20K!
    Many men here do. Myself included, even though I don’t have one. Speedster sent me a honed blade finished on one and... dang!
    David

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    The Great & Powerful Oz onimaru55's Avatar
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    I don't know these stones at all other than the 20k but ceramic can mean a lot of things. The Spyderco UF is ceramic but baked. It's grit composition is fairly coarse 1-2k IIRC but used as a polisher.

    You'll need to update us on first uses.
    It ain't what you don't know that gets you into trouble. It's what you know for sure that ain't so..

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    lobeless earcutter's Avatar
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    Quote Originally Posted by onimaru55 View Post
    I don't know these stones at all other than the 20k but ceramic can mean a lot of things. The Spyderco UF is ceramic but baked. It's grit composition is fairly coarse 1-2k IIRC but used as a polisher.

    You'll need to update us on first uses.
    I’ll be happy to! According to the store, they take about two weeks before even shipping! I did get expedited shipping though, so hopefully in three weeks?

    Either way, I can tell you what I think all day long when they get in, and i’ll Compare em to my other stones, but if there any “definitive” tests I can do without breaking a stone, let me know.

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    Senior Member Vasilis's Avatar
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    I've been seeing them on a site that has them for more than a year, and I've been wondering how do they work. And for I guess you, to test them and let us know if it's something we'll like.
    Like, double and interchangeable? The diamond plate too, would it be any better than the classic go-to diamond plate I know, Atoma? (I know, there are the US and Canada brands like DMT & Eze-lap that are more common in the west but for me the shipping makes them as expensive as the atoma, while being less "indestructible", let's not talk about that now though, the above stones is what matters).
    earcutter likes this.

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    The Great & Powerful Oz onimaru55's Avatar
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    For the Japanese, mimicking a Jnat with a synthetic is sometimes a manufacturing goal. From the description of using very little water these sound a bit in that category, if they are very hard . 800/6000 does sound aimed at knife sharpening but that's all good.
    It ain't what you don't know that gets you into trouble. It's what you know for sure that ain't so..

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    What do you want to know about dual series?
    Gokumyou GMN has 3 stones: 10K, 15K, 20K - it's another series (GMN - Gokumyo | Suehiro Corporation).

    Dual vs Debado\Ryou\Taiga - i don't have enought information about their differences.

    Dual (i've tried 300, 600, 1000, 6000) is quite dense stone but it's not a hard ceramic like spyderco.
    It's more like GMN but a bit harder.
    Yes, they work finer their grits but also they are a bit slower.
    There are two mods: with 5 mm(series Dual 5) and 10 mm thickness (DUAL STONE Size 1 #1000 DUS1000 | Suehiro Corporation).
    ... as i can see they make some changes in series:
    https://www.suehiro-toishi.com/en/dualstone2/dgs-1005/
    so dus 5 now glued to
    a general purpose fired whetstone designed to absorb water
    instead of thin metal plate.

    [rus] suehiro dual stone review

    I don't like it with water because the stone is too dense for it and razor starts to gnash or you just have probles with traces of metal on the surface.
    With oil - stone absorbes it so you need to add oil constantly.

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    I do love the SG 20K, although I have the feeling for a long time that the stone doesn't take on or absorb any water at all, it's so hard and dense perhaps it doesn't, anyone have any thoughts on this?
    "One morning I shot an elephant in my pyjamas. How he got into my pyjamas I'll never know."

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    you could try to relap it to make surface fresh, not so glassy and clean from human skin oils and etc.
    2nd tip - try to add a coupe of drops of cleanser and with a little doze of water cover all surface of the stone.
    You will see does it work or not: if it works there will be a darker spot due to water absorbation.
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