The tuna knife feature beautiful Damascus-patterned blades with a core of Aogami blue steel, which is made from famous Yasuki steel, known as prime high carbon steel, specifically developed for tools and knives.
In order to prevent distortion caused by the extra-long blade, this tuna knife is manufactured using the laminated steel method of forging, in which layers of base iron and Aogami blue steel are folded over one another to form a Damascus pattern called Sumi-nagashi. Aogami blue steel has highest wear resistance and toughness because of special hardness of 61-62 HRC.
In the forging process, the hardness as well as the stickiness of steel are improved in order to make the knife sharp and difficult to chip. There are technical processes such as Hagane-zuke (forging 2 kinds of steel - soft steel and steel), Yaki-Namashi (slowly annealing hot knife-shaped steel), Yaki-ire (immediately chilling steel in the water right after heating it to 780 - 800 degrees), and Yaki-Modoshi (heating steel to 160 - 180 degrees again in the furnace). In this way, the process of making each product requires very difficult and professional techniques which only experienced craftsmen can perform.
The blade is particularly suitable for the gentle preparation of foods though you need to treat the blade to prevent from rust.
Attention Customer,
Please be advised that this is a Pre-Sale Listing.
The item will be ordered to manufacturer as soon as we confirm your payment.
The item will be shipped approx. 1 month from the payment received date.
It is possible to special order an ebony handle and scabbard, but since the purchase price of ebony has risen sharply, could you please inquire first if you need this special order?
Condition: Brand New
Blade material: Yasuki Hagane Aogami blue steel
Region of Manufacture: Japan
Product Details: Maguro/ Tuna knife
Handle material: Magnolia wood
Specification: For Right Handed Customer
Please choose it among the following various blade length and accessories.
1. Blade length: 450mm/ 600mm/ 750mm/ 900mm/ 1050mm/ 1200mm
2. Accessories: Blade+Handle/ Blade+Handle+Scabbard
*Attention Customer: The price is charged per each 1 item.
Use & Care
Apply mild detergent on a soft sponge or wet cloth to clean. Do not use bleach. Do not use dishwasher.
Use a clean dry cloth to wipe and dry it immediately after every use.
Use sharpening stones to sharpen Japanese knives do not use a sharpening steel.
For less frequently used knives apply oil very thinly after the knives are sharpened cleaned and dried.
Do not cut frozen foods.
Shipping type：EMS (Express Mail Service) or DHL
Attention Customer,
--- If your package arrives damaged ---
1. If the package which damaged during delivery are delivered to you because the regular sales products inspected finally in Japan are shipped by all means, please consult with me at first.
2. Futhermore, if the item was broken and delivered, please keep the package and declare the loss or damage to the shipping carrier.
3. Please immediately present the article, the container, wrapping, packaging, and any other contents received in damaged condition to the shipping carrier for inspection, and please fill out a damage report.
Import duties, taxes and charges are not included in the item price or shipping charges.
These charges are the buyer's responsibility.
Please check with your country's customs office to determine what these additional costs will be prior to bidding/buying.
These charges are normally collected by the delivering freight (shipping) company or when you pick the item up - do not confuse them for additional shipping charges.
We do not mark merchandise values below value or mark items as "gifts" -US and International government regulations prohibit such behavior.
The price is charged per each 1 item.
We ship the item from Japan.
Our products are 100% authentic.
We never trade fake.
The items are always packed up very carefully.
Therefore, the regular sales products inspected finally in Japan can be received in complete condition.
If you have any questions, please contact me.