Shinken Sword


Shinken – Tameshigiri Sword

In the world of Japanese martial arts, the Shinken is a revered weapon. Used primarily in the practice of Iaido, the Shinken is a type of Japanese sword that is renowned for its sharpness and ability to cut through almost anything.

In the realm of Japanese martial arts, a shinken refers to an active blade utilized for test-cutting exercises (Tameshigiri) and demonstrations. In Japan, these are typically traditional Japanese swords, often known as Nihonto. However, due to the high cost of blades crafted by Japanese swordsmiths, enthusiasts in other regions frequently resort to replicas and swords not traditionally made.

In this article, we will explore the history and usage of the Shinken, as well as its significance in the world of martial arts.

History of the Shinken

The history of the Shinken dates back to the Edo period in Japan (1603-1868). During this time, the art of sword-making was highly regarded, and the demand for high-quality swords was at an all-time high. The Shinken was created during this period as a response to this demand, and it quickly became one of the most popular types of swords in Japan.

The Shinken is often referred to as a “real sword” because it is made with traditional techniques and materials, and is fully functional as a weapon. Unlike other types of Japanese swords, such as the Iaito, which are made specifically for practice and do not have a sharp edge, the Shinken is designed to be a deadly weapon.


Tameshigiri is the Japanese practice of target test cutting. The term’s Kanji translation literally signifies a “test cut”. This procedure gained popularity during the Edo period (17th century) as a method for assessing the quality of Japanese swords. Today, it persists but has transformed into a martial art that showcases a practitioner’s swordsmanship skills.

Throughout the Edo period, only the most proficient swordsmen were selected to conduct sword tests, ensuring that the swordsman’s skill did not influence the evaluation of the sword’s cutting ability. A variety of materials were employed for testing swords, including Wara (rice straw), Goza (woven rush mats), Tatami-Omote (the top layer of Tatami mats), bamboo and thin steel sheets.


Iaido is a form of Japanese martial art that focuses on the ability to swiftly draw one’s sword, maintaining constant awareness and readiness to respond to unexpected attacks.

The practice of Iaido encompasses four key elements: the fluid, precise movements involved in unsheathing the sword from its scabbard (also known as saya), delivering a strike or cut to an adversary, flicking blood off the blade, and re-sheathing the sword.

Beginners in Iaido may initially train with a wooden sword (bokken), though this depends on the instruction method of a specific teacher. However, the majority of practitioners wield a blunt-edged sword referred to as an Iaito or Mogitō. Only a small number of seasoned Iaido practitioners use a sharp-edged sword, the Shinken.  Those who practice Iaido are referred to as Iaidoka.

Significance of the Shinken

In the world of Japanese martial arts, the Shinken is highly regarded for its quality and functionality. Because it is a real sword, the Shinken requires a high level of skill to use properly, and practitioners must undergo extensive training before they are able to use it in practice.

In addition to its practical uses in martial arts, the Shinken also has cultural and historical significance. The art of sword-making in Japan has a long and storied history, and the Shinken is considered to be a symbol of this tradition. Many sword-makers in Japan still create Shinken using traditional techniques, and the sword is often viewed as a work of art as well as a weapon.

The Role of Shinken in Martial Arts

The Katana holds the prime position as the most recognized sword in Japanese martial arts, serving as the key blade in Kenjutsu and finding use in Iaido and Iaijutsu. In Fukasa Ryu, some martial artists also employ the Wakizashi for Kenjutsu style cutting and thrusting techniques. Those who specialize in dual-sword techniques often make use of the short sword. Meanwhile, in Tanto Jutsu, the Tanto dagger is utilized for Kata demonstrations and competitions.

Several martial art disciplines incorporate Tameshigiri, a practice where practitioners use sharp swords to cut stationary objects like tatami mats and bamboo. The use of Shinken in Tameshigiri is typically restricted to masters or experts, and students are not permitted to use it without approval. This test-cutting exercise enables a practitioner to hone their swinging technique and footwork.

Martial artists also utilize a wooden sword, or Bokken, in contact drills to practice sword fighting without risking injury. Similarly, Kendo practitioners train with the Shinai, a bamboo sword, when practicing in pairs. Iaido practitioners employ the Iaito, a blunted metal training sword for Saya practice, although it’s not used in contact drills.

Shinken Construction: The Making of a Japanese Sword

The process of creating a Shinken is a complex and time-consuming one, involving traditional techniques that have been passed down through generations of sword-makers. In this section, we will explore the construction of a Shinken and the techniques used to create this revered weapon.

Materials Used in Shinken Construction

The materials used in the construction of a Shinken are an important factor in the quality and durability of the sword. The blade of a Shinken is typically made from high-carbon steel, which is known for its ability to hold a sharp edge. The steel is heated and then hammered repeatedly, a process known as forging, to create the blade’s shape and structure.

The handle of a Shinken is typically made from wood, and is wrapped in a special type of silk or cotton known as tsuka-ito. The wrapping not only provides a comfortable grip for the wielder, but also serves to protect the wood from wear and tear.

The construction of a Shinken also involves the use of other materials, such as copper, brass, and silver, which are used to create the sword’s fittings and decorations.

Forging the Blade

The process of forging the blade is one of the most important steps in the construction of a Shinken. The steel is heated to a high temperature and then hammered repeatedly, a process that serves to align the metal’s grain structure and create a strong and durable blade.

After the blade has been shaped and forged, it is cooled slowly to prevent it from becoming brittle. The blade is then tempered, a process in which it is heated and then cooled rapidly to create a hard, yet flexible, edge.

Polishing and Finishing

Once the blade has been tempered, it is polished to create a smooth and even surface. This is a time-consuming process that involves the use of progressively finer polishing stones to remove any scratches or imperfections in the metal.

After the blade has been polished, it is fitted with its handle and fittings. The tsuka-ito is wrapped tightly around the handle, and the fittings, which are often made from copper or brass, are attached to the handle and the blade.

The final step in the construction of a Shinken is the decoration of the sword. This may involve the use of precious metals, such as silver or gold, or intricate designs that are carved or engraved into the blade.

The construction of a Shinken is a complex and time-consuming process that involves traditional techniques and materials. From the forging of the blade to the polishing and finishing of the sword, each step in the construction of a Shinken is carefully executed to create a weapon that is both functional and beautiful. Whether you are a practitioner of Iaido or simply a fan of Japanese culture, the Shinken is a sword that is sure to captivate your imagination and admiration.

Usage of the Shinken

The Shinken is primarily used in the practice of Tameshigiri and Iaido, a Japanese martial art that focuses on the art of drawing and cutting with the sword. In Iaido, practitioners use the Shinken to perform a series of techniques known as kata, which involve drawing the sword from its scabbard, making a cut, and then returning the sword to its scabbard.

Because the Shinken is a real sword, practitioners must be extremely careful when practicing with it. Safety precautions such as wearing protective gear and using a specially designed practice mat are essential to prevent injury.

Final Thoughts

The Shinken is a revered weapon in the world of Japanese martial arts. Its history, usage, and significance make it a fascinating subject of study for those interested in the art of sword-making and martial arts. Whether you are a practitioner of Iaido or simply a fan of Japanese culture, the Shinken is a weapon that is sure to capture your interest and admiration.

Eager to Know More?

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Updated: February 11, 2024 — 2:15 pm