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Thread: JNAT & Nagura questions/identification - help!

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    Senior Member Nikolay's Avatar
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    大平礦山合砥石 --- honing stone ( awasedo ) from Oohira mine

    三十型 --- size ( type 30 = 205 x 75mm )

    一本選 --- type of selection


    white nagura looks like chu-nagura from Mikawa ( medium grit )

    black nagura seems to be Tsusima Kuronagura


    I think that Oohira awasedo is not a good choice for razor finishing even when it is very hard one.
    Last edited by Nikolay; 11-10-2013 at 07:29 PM.

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