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Ittosai Kotetsu tsuchime kurouchi shirogami #1 kiritsuke sujihiki 270mm

Ittosai Kotetsu tsuchime kurouchi shirogami #1 kiritsuke sujihiki 270mm

Regular price $441.00 USD
Regular price Sale price $441.00 USD
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The Ittosai Kotetsu tsuchime kurouchi shirogami #1 is one of the latest offering from Takahashikusu. This series is forged by one of the best blacksmith in Sakai known for his superior heat treatments and forging method. And don't forget about the sharpener who is highly regarded in Sakai---certified as a Master of Japanese Traditional Crafts for blade grinding and sharpening by Japan's Ministry of International Trade and Industry. 


Brand: Ittosai Kotetsu
Blacksmith: Undisclosed
Location: Sakai, Japan
Knife type: ktip / kiritsuke sujihiki
Finish: tsuchime kurouchi

Construction type: sanmai
Steel: Hitachi shirogami #1 / white #1
Steel type: carbon

Overall length: 419mm
Blade length (heel to tip): 261mm
Blade height at heel: 37.7mm
Spine thickness at handle: 3.3mm
Spine thickness at heel: 3.0mm
Spine thickness at middle: 2.5mm
Spine thickness 1cm from the tip: 1.2mm
Weight: 190g

Edge/bevel: 50:50
Handle: octagonal macassar ebony handle with olive ferrule & butt
Hand orientation: ambidextrous

❖ Check out these other knives from this blacksmith:
  • damascus aogami #1 gyuto 240mm
  • damascus aogami #1  gyuto 210mm

  • honkasumi shirogami #2 gyuto 240mm
  • honkasumi shirogami #2 gyuto 210mm

  • honkasumi shirogami #2 sakimaru takohiki 300mm
  • honkasumi aogami #2 yanagiba 300mm

Exclusive of shipping fee.
We ship worldwide via EMS or DHL.

Care Guide

Proper care is essential for Japanese kitchen knives. Here are some important points to consider:
  • Use a whetstone to maintain sharpness. Avoid electric sharpeners and pull-through sharpeners, as they are not suitable for Japanese kitchen knives. Honing rods, typically used for western-style knives, may potentially damage the edge, particularly if you're a beginner.

  • Choose a wooden or rubber cutting board instead of bamboo or poly boards to preserve the knife's edge.

  • Keep the knife clean and dry, especially if it is made of carbon steel. Carbon knives are prone to rusting. If you prefer a lower-maintenance option, stainless or stainless-clad carbon knives are recommended.

  • Avoid using the knife to cut through bones or frozen foods. It's best to use a separate knife specifically designed for these tasks.

  • When cutting, use a smooth and fluid motion, avoid twisting or torquing the blade. This technique helps maintain control and minimizes the risk of damage.

  • Never put Japanese kitchen knives in the dishwasher. Instead, hand wash them with mild soap, ensuring thorough cleaning, and then dry them completely before storing.

By following these guidelines, you can ensure the longevity and optimal performance of your Japanese kitchen knives. Remember, proper care and attention will enhance your culinary experience and protect your investment.

FAQs: Shipping, Tax, Tracking

1. How long does shipping take?
We ship from Tokyo, Japan to different countries via DHL or EMS. Please find the estimated shipping times below:

US, Canada, Australia, Europe: 3-5 days
Middle East: 5-10 days
Asia: 2-5 days

For the Philippines:
Manila and nearby cities: 2-5 days
Visayas/Mindanao: 10-20 days

Please note that actual delivery times may vary due to factors beyond our control.

2. Are taxes included in the price?
Please note that taxes are not included in the prices listed on our website. If you would like your order to be sent as a "gift" or if you have other requests, please let us know.

(Note: For customers in the Philippines, there are no import taxes regardless of the order value. You will only pay 112 PHP for the Presentation to Customs Charge (PTCC) fee.)

3. How can I track my order?
Once shipped, we'll send a tracking link via email.

4. Is it door-to-door delivery?
Yes, DHL and EMS provide convenient door-to-door delivery.

Return Policy

  • You can return products within 14 days of receiving them.
  • To be eligible for return, the product must be unused, in the same condition as when you received it, and in the original packaging.
  • You must provide a proof of purchase to complete your return.
  • Buyers are responsible for the cost of returning products.
  • Contact us at to arrange a return.

Please note:

  • Knives damaged due to misuse, improper care, poor technique, mistakes in use or sharpening, or any other type of damage resulting from user error are not eligible for return, exchange, or refund.


  • We will notify you by email once we receive and inspect your returned item.
  • If approved, a credit will be applied to your original method of payment within a certain amount of days.

Got questions or need help? Click here.

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    Changed your mind? Return unused items within 14 days for a full refund—no questions asked. Terms apply.