The Art of the Togishi: Japanese Sword Polishing Techniques, Workflow, and Certification
* Image is for illustrative purposes only.Table of Contents
What Is a Togishi?
In the sword-making process, the specialist who polishes the blade after a swordsmith (tosho) has forged it is called a togishi (sword polisher). The togishi's work is far more than simple buffing—it is a sophisticated technical discipline aimed at drawing out the full aesthetic and appraisal value of qualities such as the jihada (surface grain), hamon (temper line), chikei (dark activity lines), and utsuri (misty reflection).
If the swordsmith "gives birth" to the blade, the togishi "reveals its beauty." The same blade can look dramatically different depending on the polisher's skill, directly affecting its appraised value. The togishi is therefore regarded as an equal partner to the swordsmith in the sword world.
The Multi-Stage Polishing Workflow
Japanese sword polishing is divided into 7 to 9 distinct stages.
Shitaji-togi (Foundation Polishing)
Foundation polishing shapes the blade and removes surface roughness.
| Stage | Stone | Purpose |
|---|---|---|
| Arato (rough stone) | ~800 grit equiv. | Remove deep scratches and rust; establish basic geometry |
| Nakanagura (medium nagura) | ~1200 grit equiv. | Remove arato scratches; refine shape |
| Hosonagura (fine nagura) | ~2000 grit equiv. | Unify surface texture |
Shiage-togi (Finishing Polishing)
Finishing polishing maximizes the aesthetic value of the blade.
| Stage | Stone | Purpose |
|---|---|---|
| Uchigumori-to (inner cloudy stone) | Natural stone | Develop and reveal the jihada grain pattern |
| Hato (edge stone) | Special natural stone | Clarify the hamon |
| Migaki (burnishing) | Uchiko powder + cotton | Final high-gloss finish |
Kesho-togi (Cosmetic Polishing)
For highest-grade work, a technique called nugui (wiping polish) imparts a distinctive lustre to the blade.
Types of Polishing Stones
Togishi use both natural stones (tennen toishi) and synthetic stones (jinzo toishi).
Natural Stones
Japan's finest natural polishing stones come primarily from the area around Kameoka and Muko in Kyoto Prefecture ("Kyoto toishi"). Key varieties include:
- Uchigumori: Medium-hard, grey-white stone; indispensable for revealing jihada patterns
- Narutaki: Fine-grained and uniform; excellent for expressing the hamon
- Tomare: The finest finishing stone; now extremely rare due to near-depletion of quarries
Synthetic Stones
As natural stone supplies dwindle, precision synthetic stones are increasingly used in intermediate stages, but natural stones remain essential for the final finish.
The Polishing Lineage: The Hon'ami Family
The most influential force in systematizing Japanese sword polishing was the Hon'ami family (Hon'ami-ke), whose service to the sword world dates to the late Muromachi period.
The Hon'ami family served as sword stewards (okatanamban) to the Ashikaga shogunate, holding a hereditary monopoly on sword polishing, appraisal, and connoisseurship. Hon'ami Koetsu (1558–1637) was particularly renowned as the supreme authority on sword polishing and authentication, and his techniques profoundly influenced all subsequent practitioners.
Most modern togishi trace their technical lineage back to Hon'ami methods, transmitted through oral instruction and hands-on apprenticeship from master to student.
Modern Certification and Training
Modern togishi credentials are recognized through an evaluation system involving both the All-Japan Swordsmith Association and the Society for the Preservation of Japanese Art Swords (NBTHK).
Certification Levels
- Togishi certification examination: Practical test verifying fundamental technique
- Excellent polisher: Accumulated recognition at exhibitions and appraisal events
- Tokubetsu Juyo (Special Important) certified polisher: The highest NBTHK polisher credential
Current Supply Situation
There are approximately 150 certified togishi nationwide today—fewer than there are certified swordsmiths (about 250). Demand outstrips supply; waits of 1–3 years for top-tier polishers are not uncommon.
Polishing Cost Reference
Costs vary substantially based on the blade's condition, length, and required quality level.
| Type | Estimated Cost |
|---|---|
| Basic polishing (shitaji only) | ¥50,000–150,000 |
| Standard polishing | ¥150,000–300,000 |
| Full cosmetic polishing | ¥300,000–1,000,000+ |
A freshly polished blade is evaluated far more highly in authentication, exhibition, and resale contexts, making polishing investment a critical decision for collectors.
Summary
The togishi is the "final finisher" of the Japanese sword—the craftsperson whose work ultimately determines its value. Their technical discipline, rooted in centuries of tradition, continues to grow in both rarity and importance in the modern world.
