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  1. Thread: Trip to Japan

    by DrNaka
    Replies
    9
    Views
    709

    I have mobile Wifi router for you. So we have...

    I have mobile Wifi router for you.
    So we have internet during our trip.

    But it is much slower than 1G light fiber connection....

    It is only max 42Mbps down and 5.7Mbps up.
  2. Thread: Mystery Solved

    by DrNaka
    Replies
    22
    Views
    1,043

    Hmm Is it a new style Gishiki-Bocho? :wink: ...

    Hmm

    Is it a new style Gishiki-Bocho? :wink:

    http://farm3.static.flickr.com/2561/3732246100_c11892164f_b.jpg
  3. Thread: Kuro-Uchi

    by DrNaka
    Replies
    12
    Views
    1,420

    I myself have only one KU knife. It is a Iyo...

    I myself have only one KU knife.
    It is a Iyo style knife (it is similar to a Santoku) made by Master Shirakata.

    The story about this master blacksmith is here:
    1000 year nail
  4. Thread: Yoshikane SKD

    by DrNaka
    Replies
    19
    Views
    2,978

    The SKD of Yoshikane is SKD12. It will have the...

    The SKD of Yoshikane is SKD12. It will have the mark SKD at the back side.
    http://1.bp.blogspot.com/-jqD10c3WsR4/Te3HRYHUs9I/AAAAAAAABGc/Ixwo-jvwxYg/s1600/SKDblade2.jpg

    The Sekiso (Damascus) is...
  5. Thread: Yoshikane SKD

    by DrNaka
    Replies
    19
    Views
    2,978

    If you see Yoshikane Gyuto shop to shop in Japan...

    If you see Yoshikane Gyuto shop to shop in Japan you will see that the spine thickness varies
  6. Replies
    34
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    1,751

    Does nobody use the sun (or reflection of...

    Does nobody use the sun (or reflection of sunlight) to see if you have burr or not?
  7. Replies
    51
    Views
    3,770

    Please be sure that you have sharpened and...

    Please be sure that you have sharpened and cleaned from any residual rust.
    And after sharpening you must apply hot water as soon as possible.

    If it is your first time do not use the knife...
  8. Replies
    51
    Views
    3,770

    http://www.misumi-techcentral.com/tt/en/surface/20...

    http://www.misumi-techcentral.com/tt/en/surface/2010/08/052-passivation-of-metals.html



    Who is saying that iron cannot be passivated?
  9. Replies
    51
    Views
    3,770

    http://www.dtic.mil/cgi-bin/GetTRDoc?AD=AD055740&L...

    http://www.dtic.mil/cgi-bin/GetTRDoc?AD=AD055740&Location=U2&doc=GetTRDoc.pdf
    This is a nice read.
  10. Thread: Trip to Japan

    by DrNaka
    Replies
    9
    Views
    709

    You are welcome!

    You are welcome!
  11. Replies
    51
    Views
    3,770

    I think too that pure metal and metal oxides are...

    I think too that pure metal and metal oxides are hydrophobic.

    But a not good maintained knife will have metal oxide+water like in form of FeOOH etc.
    These will have affinity to water and the...
  12. Replies
    51
    Views
    3,770

    Reading the responses I realize that in some...

    Reading the responses I realize that in some countries there is no lecture in school about iron in concentrated nitric acid.

    BTW most reaction speeds including the oxidation of iron surface by air...
  13. Replies
    16
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    1,135

    The most expensive stone I saw was 5,000,000JPY....

    The most expensive stone I saw was 5,000,000JPY.

    The most expensive stone I had a try to sharpen was a 200,000JPY a big egg color Nakayama stone.
    It had a very nice sharpening feeling.

    So that...
  14. Replies
    51
    Views
    3,770

    As I explained passivation is at surface only. It...

    As I explained passivation is at surface only. It is not visible to eye.

    The question here is how can you make it visible.

    I think I found a easy method. Just use water and see if the surface...
  15. Replies
    51
    Views
    3,770

    Passivation of Carbon Knives

    I do not know how the education in other countries are but in Japan we have chemistry lecture in middle or high school (I forgot which because it was about half century ago) about reaction of metal...
  16. About #number. Originally the number indicate...

    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...
  17. Harald san Thank you very much for the blog...

    Harald san

    Thank you very much for the blog writing.

    Now I have pressure to find such a big Atagoyama stone again but it is very difficult...
  18. Replies
    35
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    1,795

    Welcome Maksim san

    Welcome Maksim san
  19. Replies
    9
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    1,205

    Wow a very very good Ohira suita. There are...

    Wow a very very good Ohira suita.

    There are only few which makes such a good Swarf/Mud ratio.

    And to find such a yellow color stone is near impossible now.

    The light yellow color makes a big...
  20. Thread: Fingerstones

    by DrNaka
    Replies
    27
    Views
    2,865

    Maxim san Wonderful finish. Though Iizuka...

    Maxim san

    Wonderful finish.

    Though Iizuka san official says that it is by chance that you get "clouds" on his Kasumi knives I think lot is on your craft and the wonderful JNS you have.
    I see...
  21. Replies
    28
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    2,402

    There are ways to get Jnats for a limited budget....

    There are ways to get Jnats for a limited budget.

    1. If you want the nice finish on the blade get fingerstones.
    2. If you want to a stone for razor and knife get a hard and fine Jnat. It is OK if...
  22. Thread: Fingerstones

    by DrNaka
    Replies
    27
    Views
    2,865

    And if you slip bleed your finger...

    And if you slip bleed your finger...
  23. Replies
    54
    Views
    2,083

    #2 But because many get confused with primary...

    #2

    But because many get confused with primary and secondary I use the Japanese term "Itoba" or the English term "microbevel"
  24. This is a very difficult question. Most things...

    This is a very difficult question.

    Most things you can buy over internet worldwide.

    I would suggest to buy miso or shoyu in a professional shop because you have much more to choose than in US...
  25. Thread: Iron chef Japan

    by DrNaka
    Replies
    52
    Views
    2,670

    The monk fish Japanese eat is Lophius litulon. ...

    The monk fish Japanese eat is Lophius litulon.

    Do you not have the monk fish or Ankou (Japanese) liver in restaurants?

    It is comparable to foie gras.

    Here some pictures:...
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