The Tsukamakishi: Expert Techniques for Handle Wrapping and Maintenance

What Is a Tsukamakishi — Craftspeople Who Breathe Life Into the Handle

The "tsuka" (handle) of a Japanese sword is not merely a grip. It is a precision structure that connects the blade created by the swordsmith to the user's hand, combining function and beauty. The craftspeople who specialize in creating and restoring handles are called "tsukamakishi" (handle wrappers).

The work of a tsukamakishi is not simply "wrapping thread." All of the following are included within this single occupation as a sophisticated technical system:

• Shaping the tsukaki (handle wood)
• Attaching same-gawa (ray skin)
• Positioning the menuki (handle ornaments)
• Selecting thread and managing tension
• Final shaping and finishing

Handle Structure — The Parts a Tsukamakishi Works With

The "tsuka" that a tsukamakishi handles is composed of the following parts.

Tsukaki (Handle Wood)

The wooden component that forms the core of the handle. In most cases, "ho-no-ki" (Japanese ho tree) is used. The interior is carved to match the shape of the nakago (tang), so the tang fits perfectly inside.

Because the tsukaki must encase and secure the tang, it must be shaped to match the tang's form (length, width, and curvature) completely. The precision of this shaping determines the quality of the entire handle.

Same-gawa (Ray Skin)

The material that covers the outside of the tsukaki. The name means "shark skin," but in reality, the skin of a ray (particularly the Japanese butterfly ray) is used. Ray skin, with its finely textured bumps (small nodules) arranged uniformly, possesses excellent friction coefficient and water resistance, preventing the sword from slipping in the hand.

Quality and rank of ray skin: The uniformity, density, and whiteness purity of the bumps determine quality. There is a formal convention to position the center section (the large-bump protrusion known as "oyatsubu" (parent bump) or "hoshi" (star)) toward the handle end.

Thread (Ito)

The thread that wraps over the ray skin is called "tsuka-maki ito" (handle-wrapping thread). The thread's material, color, twist strength, and wrapping method determine the handle's function and appearance.

Handle-Wrapping Thread Materials and Types

Silk Thread (Kinu-ito)

The highest-ranking material. It has luster and is used in quality fittings. However, degradation from aging can be faster than cotton thread in some cases, and regular maintenance is necessary.

Cotton Thread (Men-ito)

Slightly lower rank than silk, but superior in durability and cost-performance. It was used on most practical swords and warrior swords of the Edo period. It is also widely used on modern iaido swords.

Leather (Kawa)

Wrapping the handle with same-gawa leather or deer leather—"kawa-maki" (leather wrapping). It is lightweight and provides good grip when dry. It was adopted for practical swords used by generals and foot soldiers in field combat.

Thread Color

Thread color is chosen to match the overall style and intention of the fittings.

• Black: The basic color of warrior-class swords. It embodies an aesthetic of genuine strength and integrity.
• Navy, deep green: Common in formal warrior-class fittings. Has dignity and a calm impression.
• White, off-white: Used in fittings for Shinto priests or court-related contexts, or for special ceremonial swords.
• Brown, gold, crimson red: Used in ornate fittings or those with special designs.

Wrapping Methods — The Core of a Tsukamakishi's Skill

There are many methods of wrapping the handle (wrapping forms), each with different functions, appearances, and ranks.

Moro-hineri-maki (Spiral Twist Wrapping)

The most common wrapping method. The diamond-shaped exposed sections of ray skin are arranged at equal intervals. The balance of practicality and appearance is good, and it was widely adopted as the standard fitting for uchi-gatana (fighting swords).

Jabara-maki (Bellows Wrapping)

The thread is wrapped densely like the belly of a snake, with diamond-shaped ray skin sections either absent or extremely minimal. Grip strength is maximized, making it suitable for battlefield-oriented fittings.

Hira-maki (Flat Wrapping)

The thread is wrapped flat (without gaps). The ray skin is either completely hidden or barely exposed. It gives a uniform appearance to the entire handle and was used for ceremonial and decorative fittings.

Katate-maki (Single-Hand Wrapping) and Ryoute-maki (Two-Hand Wrapping)

The wrapping method differs according to handle length for "single-hand" versus "two-hand" grip. In accordance with the length of tachi or uchi-gatana, the grip position and thread arrangement are optimized.

The Tsukamakishi's Training Process — Learning the Technique

Beginning of Training

A tsukamakishi's training begins by entering a master craftsman's workshop. In modern times, training at specialized schools or craft associations—similar to swordsmiths and polishers—has become available, but the traditional apprenticeship system remains the mainstream.

1. First stage: Handling materials—learning how to select, cut, and soak ray skin in water (softening it in water before pressing it onto the tsukaki).
2. Second stage: Shaping the tsukaki—carving and shaping to match the tang's form. This precision determines overall quality.
3. Third stage: Thread wrapping technique—the most time-consuming stage. Repeated practice until thread tension (which must remain constant), angle, and intersection handling become uniform.

It typically takes five to ten years to become independent as a full-fledged craftsperson.

Contemporary Challenges

Among Japanese sword craftspeople, tsukamakishi are a field with particularly few practitioners. Shortage of successors is serious, with craftspeople continuing to close their businesses. Meanwhile, due to the growing population in iaido and tameshigiri, as well as the Japanese sword boom, demand for handle repairs and new handles is rising. This supply-and-demand imbalance is an industry challenge.

Maintenance and Lifespan of Handle Wrapping

Handle wrapping is a consumable. Regular maintenance and "rewrapping" become necessary when condition deteriorates.

• Degradation from sweat and oil: Thread on frequently-used sword handles absorbs hand sweat and hand oils, causing damage. Silk thread in particular can deteriorate within five to ten years.
• Ray skin peeling: Through extended use or improper storage, ray skin can separate from the tsukaki.
• Rewrapping costs: At contemporary rates, rewrapping a standard uchi-gatana handle costs several tens of thousands of yen (varying by materials, craftsperson's skill level, and region).

Conclusion — How the Tsukamakishi's Skill Makes a Japanese Sword "Usable"

No matter how excellent the blade created by a swordsmith, an improperly wrapped handle renders it unusable. Loose thread, peeling ray skin, and uneven wrapping undermine the sword's stability in the hand, and in the worst case create the danger of the sword slipping from the hand.

The tsukamakishi's work is an unsung supporting role. Those viewing the completed fittings evaluate "the sword's beauty," but that beauty—realized together with functionality—is created by the technique of the tsukamakishi, wrapping thread in an inconspicuous place.

Japanese sword culture centers on appreciating the blade, hamon, and steel pattern, but by understanding the handle—and the existence of the craftsperson known as the tsukamakishi—the broader picture of Japanese sword culture becomes richer and more vivid.