What is the Jitte?——The "Enemy of Swords" and Its Sister Weapon

If the Japanese sword is the warrior's soul, then the jitte can be called the "enemy of blades." This iron weapon, carried by Edo period okappiki (informants) and doshin (constables), was a defensive and restraint weapon born from a completely unique concept—its primary purpose was to "receive, entangle, and seal" an opponent's sword.

However, the relationship between the jitte and the sword industry was not adversarial. Rather, the manufacture of the jitte was also the work of sword smiths, made from the same iron as swords, using the same metalworking techniques. Understanding the jitte means understanding the diversity of Japanese metalworking culture and weapon manufacturing.

Structure and Part Names of the Jitte

The basic structure of the jitte is simple, but it is functionally designed with precision.

Main body (kagi/hook): Generally 30–50 centimeters in overall length. The cross-section varies—circular, hexagonal, octagonal, etc.—with a sharp point at the tip. Iron is the primary material, with flexible steel or forged iron blocks emphasizing weight and solidity.

Hook (kagi): A lateral protrusion set near the handle—this is the jitte's defining feature. When receiving an opponent's sword, this hook catches and entangles the blade. The hook's shape varies from a simple one-directional protrusion to a cross shape, which gave the jitte its name with protrusions on both sides.

Handle (tsuka): The grip section. Finished with leather, braided cord, and metal fittings. Unlike swords, it had no sheath—it was either thrust directly into the belt or carried in a jitte bag.

Tassel (fusa): Decorative cord attached to the end of the handle. Colors—red, white, indigo—sometimes indicated rank or affiliation.

Jittejutsu——A Systematic Technique for Controlling Swords

The jitte was not merely a tool; its use involved "jittejutsu," a systematic body of technique.

The foundation of jittejutsu is "receiving and capturing." Against a sword attack, one deflects using the jitte's main body or hook, sealing the blade the moment it tangles in the hook. After complete control of the sword, the transition to "torinawa" (rope restraint)—subduing and binding the opponent—completes the sequence.

Notable schools such as the Sekiguchi-ryu and Araki-ryu systematized jittejutsu. These schools emphasized training with the jitte against sword techniques, with the core of practice being the ability to read a blade's trajectory, nimble body movement, and precise spacing calculations.

Additionally, the jittejutsu used by okappiki and doshin in actual practice differed from formal school patterns, being more improvised and practical. Records indicate that surrounding a single swordsman by coordinating multiple jitte users—called "kyogeki" (flanking attack)—was also a standard tactic.

Sword Smiths and Jitte Manufacturing——The Sword Smith's "Counterpart"

During the Edo period, jitte manufacturing was primarily carried out by sword smiths and metal fittings makers. They worked with the same iron materials as swords, and many of the processes—forging, quenching, and polishing—overlapped with sword manufacture.

However, a crucial difference from swords is that the jitte has no blade. Since the jitte was not designed for cutting or striking, tempering to create a hamon was unnecessary; instead, uniform toughness throughout was prioritized. Opposite to the hard, brittle edge of a sword, it was a product that leveraged iron's properties in a different direction.

Edo period jitte ranged widely in grade from common products to exquisitely crafted pieces by master artisans. Official-issue jitte distributed by magistrate offices had a mass-produced finish, but wealthy doshin or official informants sometimes commissioned elaborate jitte from metal workers.

The Modern Intersection of Jitte and the Sword Industry

In the modern sword industry, the jitte has formed its own market as a distinct collecting category. Period jitte are exhibited at sword and antique markets, and those with signatures (mei) or elaborate carved designs command high prices.

Some sword specialty shops handle not only swords but also "old weapons" in general, including jitte, weighted chains, chain weights, staffs, and shuriken. This diversification of product offerings is also related to increasing inbound tourism demand. Foreign weapons and martial arts enthusiasts have broad interest not only in Japanese swords but in Japanese weapons culture overall, and the jitte is one example.

In martial arts and martial disciplines, schools and dojos continue to practice jittejutsu today. Organizations such as the All Japan Jittejutsu Federation work to preserve and promote traditional techniques, and demand for training jitte (iron, aluminum, and wooden) continues.

Learning the Depth of Japanese Metalworking Culture from the Jitte

The jitte, though often overshadowed by swords, is an important legacy that reveals the depth of Japanese metalworking culture, weapon manufacturing, and martial systems. The fact that the same craftspeople were responsible for both "making" and "controlling" swords demonstrates the flexibility of Edo period artisan society.

For sword collectors and enthusiasts of sword culture, broadening one's perspective to include "non-sword weapons" such as the jitte, shuriken, and iron fan leads to a more comprehensive understanding of Japanese weapons manufacturing history and martial arts history. In terms of expanding the sword industry's reach, the promotion, exhibition, and sale of these "peripheral weapons" can be considered a meaningful endeavor.