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侍#Terressens | Samurai & Katanas | Sharpened Katana Kokuyō (黒夜, black night), damascus blade, black mount 刀

Sharpened Katana Kokuyō (黒夜, black night), damascus blade, black mount #Terressens

Kokuyō sharpened katana (黒夜, black night), damascus blade, black mount

Sharp Katana, damascened forge, with scabbard (saya 鞘) black, delivered in a wooden box containing a maintenance kit and a protective cloth cover

It's in the dead of night that I hide, the better to approach my enemies and reduce them to nothing. I've served several samurai, and even a Daimyō (大名), the military man of exceptional deeds who became a provincial governor.
My exceptional blade was forged according to tradition. The ore from which I'm made, Tamahagane (玉鋼), has been transformed by hand by the blacksmith to achieve exceptional strength while combining it with the necessary suppleness. My sides show those waves that set me apart from other, less noble blades. Each undulation of the layers that make me up forms the visible face of my warrior soul.
I won't stay locked up in my saya (鞘) for long. The slightest provocation always brings me back to life.

Reference n° 0480 - Shipped within 48 hours
309 € (free shipping)

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Metallurgy

Magazine #Terressens

Japanese sword metallurgy (choosing the right katana, 1ʳᵉ part)

Various criteria can play a part in the choice of a katana (刀). Its use in martial or sporting practice, as well as the level of the practitioner, influence it considerably. Its weight, point of balance, construction (materials and mechanical characteristics) are all criteria to be taken into consideration when choosing your Japanese sword or Shinken (真剣, contemporary katana).

► Read the article

The reading corner

"Le Damas or The Art of Fire and Steel", Gilles Bongrain

This book, illustrated with 280 photos, is the first of its kind written in France on the precise theme of damascus. It follows on from the author's first book, "Les couteaux d'art", with the aim no longer of explaining the manufacturing techniques used by cutlery craftsmen, but of dealing with damascus technology itself. Whether you're a hobbyist, an amateur or a professional cutler, an enthusiast of experimental archaeology, a collector or just a hobbyist, you'll find a wealth of technical, historical and artistic information in this groundbreaking work.
Published: 1ˢᵗ November 2003

► Buy the book (link paid by Amazon)

Technical

Manufacturing
. Throat blade in damascus steel, sharpened (suitable for practical cutting)
. Mechanical sharpening
. Through silk (end at 4 cm from kashira 頭)
. Two pegs (Mekugi 目釘) .
. Handle (tsuka 柄): shagreen (Same 鮫肌, ray skin) covered with black synthetic ito.
. Guard (tsuba 鍔): laser-cut steel
. Scabbard (saya 鞘) : varnished wood

Features
. Blade length (nagasa 長さ): 70 cm (balance point 12 cm from tsuba)
. Curvature (Sori 反り): 20 mm / Torii-Sori (symmetrical)
. Thickness (Kassane): 7 / 4 mm
. Total length: 102 cm
. Tsuba: 7.5 x 8 cm
. Tsuka: 26 cm
. Mune (棟) : Hikushi

Weight (approx.) :
. Katana : 1 000 g
. Saya : 220 g

Packaging
Wooden case (10 x 16 x 110 cm) containing care kit and protective fabric cover

Maintenance
Blade protection: clean blade and apply a film of oil regularly to prevent oxidation (rust).
Maintenance to be carried out after each cutting training session or monthly without use (see below).

Core steel: 1045

Steel on wire: 1045

Surface steel: 1045

Forge: Damascus

Quenching: simple

Sharpening: mechanical

📌 Also read: katana metallurgy glossary

Maintenance kit

Maintenance of a sword or saber is necessary to prevent oxidation (rust). Old oil must be removed and replaced by a film of new oil. The maintenance kit is composed of several elements:
Microfiber cloth: for cleaning, spreading oil and polishing the blade.
Uchiko: a ball of finely ground chalk (chalk powder) wrapped in a ball of cloth. Intended for cleaning the blade's surface, the powder passes through the wrapping when tapped, allowing it to be sprinkled over the blade's steel.
Oil: applied as a thin film, it protects against oxidation.
Mukugi(x 2): pins (bamboo dowels 目釘) that hold the blade and handle (tsuka 柄) together.
Pin driver (Mekugi Nuki): Small brass hammer with a screwed-in pin for removing mekugi.
Maintenance does not require disassembly, but if you need to remove the handle (tsuka 柄), replace the pins.

Figure 1: Cleaning the blade with a microfiber cloth

Figure 2: Tapping the Uchiko on the blade to deposit limestone powder

Handle with care to avoid injury.
1/ Use the microfiber cloth to remove oil from the blade. From the guard (Tsuba 鍔) to the tip (Kissaki 切先), slide the cleaning cloth over the back of the blade (Mune 棟), folding it in half to wrap both sides of the blade.
Lightly squeeze the cloth between thumb and forefinger to surround the blade from above (first illustration).
2/ Once the old oil has been removed, use the uchiko to lightly tap along the blade (second illustration).
3/ Use the cloth to lightly polish the blade and remove the powder, in the same direction as the first step (first illustration).
4/ Apply the oil along each side of the blade with the sprayer (or a very soft brush). The oil should be spread thinly and evenly, without excess (first illustration).
Be sure not to touch the blade before replacing it in its sheath (saya 鞘).
Clean the microfiber cloth with soapy water.

Legislation

Since September 6, 2013, new legal provisions stemming from the March 6, 2012 law have come into force. These new rules have strengthened criminal penalties against weapons offenders and introduced a new classification.
Katanas, swords, daggers and knives are now classified in category D. The purchase and possession of these weapons are unrestricted. In principle, they may not be carried or transported without legitimate reason. If transported, the weapon must not be "directly" usable. It must be securely packed in a case or container, preferably with a padlock or other protective system.
To find out more: Code de la sécurité intérieure on Legifrance

The sale of war materiel, weapons, ammunition and their components to minors is prohibited. Please remember to provide us with proof of your majority (identity card, passport) by e-mail to validate your order: studio@terressens.com. If we do not receive this document within 48 hours, your order will be cancelled and reimbursed in full.

To find out more, read our practical information sheet: "Is it legal to own a katana?

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CL	customer (August 2024) Excellent experience Excellent experience, Fast delivery (despite shipping to Belgium) Top quality product ( black night katana ). I'll recommend it at the earliest opportunity. Kokuyō sharpened katana (黒夜, dark night) and Sutairisshu" katana holder

	Lucas MC (january 2024) Second purchase Following my second purchase, I can only confirm my satisfaction. I wanted to an engraving on my katana and they were able to give me the best possible guidance on the feasibility of my request. Good communication, good packaging, etc. Nothing to worry about here.

	customer (november 2023) Very serious, the company boss is happy to be contacted to satisfy a particular request, and goes out of his way to meet deadlines. Hats off to them!

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侍#Terressens | Samurai & Katanas | Sharpened Katana Kokuyō (黒夜, black night), damascus blade, black mount 刀

Kokuyō sharpened katana (黒夜, black night), damascus blade, black mount