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Thread: type 24 stone?

  1. #1
    Senior Member markenki's Avatar
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    type 24 stone?

    What is a "type 24" stone? What other types are there?

    Thanks,

    Mark

  2. #2


    24 type 210㎜ 78㎜
    30 type 205㎜ 75㎜
    40 type 205㎜ 75㎜
    60 type 195㎜ 70㎜
    80 type 180㎜ 63㎜
    100 type 160㎜ 58㎜
    Razor size 136㎜ 82㎜

  3. #3
    Senior Member markenki's Avatar
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    Thanks, Vladimir. Here are a couple of links I found as well (once I figured out how to search for them!).

    http://www.thejapanblade.com/stonegrade.htm

    http://www.kitchenknifeforums.com/sh...-heck-outta-me!


    DrNaka's reply is particularly informative:

    About #number.
    Originally the number indicate how many stones you can carry in a old Japanese container.
    So the bigger the number the smaller the stone.

    But now it will indicate a size. #40 and #30 will be almost same size but #40 will have a cut corner.

    Most #24 will be over double of the weight of a #30.

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