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Koho Ginsan Steel Kasumi Yanagiba 300mm
Koho Ginsan Steel Kasumi Yanagiba 300mm


※ One Side Mirror, blade grinding (honbazuke), as well as the handle and saya, are all included in the set. Product photos were taken with the anti-rust protective film still on the blade.


Koho’s sharpening artisan Mr. X (九条 内山浩行 / Hiroyuki Uchiyama) has completed the mirror polish on the engraved area and Honbazuke (本刃付け) finishing.


※ This item is sold exactly in its original, Japan-made configuration, in accordance with our agreement with Koho.

We recommend that you first experience the knife in Koho’s original specification as intended.

If you would like to replace the handle later, please purchase a handle separately and contact us—we will assist with the handle replacement.

For specification changes and related inquiries, please contact us individually via Instagram DM or email.



[about Koho]

Koho (Kohō) is a Sakai-based premium brand developed by Suzuki Shosya, known for its scarcity due to a sales model focused more on direct distribution than open retail.

Rather than flashy marketing, Koho places value on chef-centered performance and usability—easy maintenance, clean cutting feel, well-balanced handling, and long-session comfort in professional kitchens.

 

Koho Ginsan Steel Kasumi Yanagiba 300mm

$789.00Price
Quantity
Out of Stock

  • Specification

    Country/Region of Brade : Sakai / Japan

     

    Blacksmith : Shogo Yamazuka

     

    Sharpener : Mr.X (Hiroyuki Uchiyama (九条 内山浩行))

     

    Knife Type : Yanagiba

     

    Constraction of Knives : single-edged blade

     

    Steel Type of Cutting Edge : Japanese Stainless Steel

     

    Steel Name : Silver #3 Steel (Ginsan / Gingami #3)

     

    Forge Welding : Kasumi (laminated blade)

     

    Quench : TBD

     

    Finish and design : Kasumi finish

     

    Hamon(Wave) : TBD

     

    Cutting Blade Length : 300mm size (actual length approx TBD)

     

    Blade Width : 33mm

     

    Thickness : 4.2mm

     

    Weight : 208g (including handle)

     

    Saya (Sheath) : Included

     

    Note of Use : Since the blade can chip or break, do not attempt to cut, hit or chop frozen products or hard bones.

     

    Remark : Professional use (for top chef), ebony handle, paulownia box & signed certificate included

  • About Blade Steel

    [About Ginsan Steel (Ginsanko)]

    Ginsan (Ginsanko / Silver #3) is a premium Japanese stainless steel often chosen for a carbon-steel like” sharpening feel with far less worry about rust. Its relatively pure composition centered on iron, carbon, and chromium helps produce a fine grain and a crisp, refined edge. Many makers describe it as a stainless counterpart to White steel: sharp, easy to maintain, and friendly on sharpening stones for consistent upkeep.

  • Saya Care

    1. Avoid long-term storage inside the saya


    Even if there is no visible moisture on the blade, keeping the knife inside a sealed saya for a long period can trap humidity and may cause rust. For long-term storage, please take the knife out of the saya and store it separately.

     

    2. If any problem occurs after purchase


    Notes When Purchasing a Saya (Wooden Sheath)Avoid long-term storage in the saya


    Even if the blade is completely dry, keeping it sealed inside the saya for a long time can trap moisture and cause rust.For long-term storage, please remove the knife from the saya.


    Be careful not to scratch the blade when inserting itTo help minimize scratches, the opening on the inside of our saya is finished with a velvet lining.


    However, scratches may still occur due to careless insertion or removal, so please keep this in mind when purchasing.


    As this is considered a matter of normal use and handling, we may not be able to repair or compensate for scratches that occur during use.
     

  • Important Notice

    *Color and shape can differ from the photo and actual product due to camera and lighting.


    *Also, you may see difference in colour due to the oil applied to protect from rust.


    *For handmade products, there may be small scratches. There is no problem in use at all.


    *In addition, vintage products may have minor scratches due to long-term storage.


    *Wood products may age over time.


    Please check the image well before purchasing.
     

  • Shipping information

    * We will pay for the amount exceeding the $35 shipping fee for each country


    *We safely pack international shipping


    *We are not responsible for delivery errors caused by address input errors

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