Before You Commission Polishing—Understanding Utsuri, Costs, Choosing a Polisher, and the History Your Sword Tells

The Togishi Craftsman — Artists Who Awaken the Beauty of the Sword

The polishing of Japanese swords is an extremely advanced and profound technique undertaken by specialized craftsmen called togishi (sword polishers). The togishi is not merely someone who "polishes" a sword, but rather an artist who draws out the beauty sleeping within the blade and revives the world of beauty that the swordsmith intended for the modern era. Polishing serves both the practical role of sword preservation and is an important process that significantly influences the market value of the sword. In the hands of a skilled togishi, dull tamahagane (the steel) reveals a clear skin pattern (hadame), and previously unclear blade patterns (hamon) emerge in bright, sharp relief. Mastering this technique typically requires more than ten years of training, and the number of accomplished togishi remains extremely limited even today.

The Multi-Layered Purposes and Roles of Polishing

The common perception that "polishing restores cutting ability" is actually only one aspect of its purpose. The primary goal of polishing is to maximize the beauty of the tamahagane's skin patterns (itame, mokume, nagare-hada, etc.), to make the complex and subtle patterns of the blade pattern more clearly visible, and to utilize the phenomenon called "utsuri" (white reflections that appear on the tamahagane). Utsuri is a particularly prominent aesthetic phenomenon in Bizen-den blades and is greatly influenced by the quality of polishing. These aesthetic elements lie dormant within the steel at the point of manufacture and only manifest externally through the polishing process. Polishing is precisely the act of "awakening the sleeping beauty of the sword," and in this sense, it is an artistic endeavor with value equal to or exceeding that of fine art restoration.

Shitaji-Togi — The Foundation Process That Shapes the Sword

The first stage of polishing is called "shitaji-togi" (foundation polishing). It begins by using relatively coarse whetstones such as ara-to and chu-to to adjust the overall shape of the entire blade. This stage forms the most important foundation within the entire polishing process. The togishi must first understand the historical background, manufacturing period, and characteristics of the school before determining the "form" the sword should originally possess. Each period—Kamakura, Nanboku-cho, Muromachi, and Edo—has its own characteristic curvature, blade width, and thickness of the back, and adjusting to the typical form of that era is the core of foundation polishing. While carefully repairing scratches and dents and removing rust, the blade is brought closer to the ideal form the swordsmith intended. This process is purely technical while simultaneously demanding deep aesthetic judgment.

Shiage-Togi — The Final Process That Manifests Beauty

Once the sword's form has been refined through foundation polishing, it proceeds to the "shiage-togi" (finishing polish) stage. At this stage, specialized finishing whetstones are used to draw out the maximum beauty of both the tamahagane and the blade pattern. First, a special whetstone called "uchigumori-to" is used to refine the tamahagane's surface and make the scenery of the skin pattern stand out. Next, in a process called "hazuya," the blade pattern is brought into sharper relief, and the texture of nie (granular crystalline patterns) and nioi (hazing patterns) are expressed with clarity. Subsequently, "jizuya" further polishes the entire tamahagane, adding shine and depth to the blade. In the final stages of "narume" and "migaki" (polishing), the blade is finished to achieve the brightest possible state. The selection and use of whetstones at each stage represent the crystallization of the togishi's knowledge and experience, requiring delicate judgment according to the steel's properties, hardness, and carbon content.

The Reality of Polishing Duration and Cost

The time required to polish a single sword varies greatly depending on the sword's condition, degree of rust, presence of damage, and desired finishing level. Even a sword in relatively good condition typically requires three to six months, and swords with significant damage or those requiring exceptionally precise finishing often take from six months to over a year. Cost is typically calculated based on the blade's cutting edge length and varies widely depending on the sword's condition and finishing level. Even standard preservation polishing often costs between 100,000 and several million yen, and precision finishing polishing of important swords can reach several hundred million yen. This is not an excessive cost but should be understood as a legitimate investment to maximize the sword's value and ensure its preservation for the future.

The Choice of Togishi Determines the Sword's Future

When commissioning the polishing of a Japanese sword, the selection of the togishi is the most critical decision affecting the sword's future value. A sword in the hands of a skilled togishi will have its dormant beauty fully awakened, and its appraisal value may improve dramatically. Conversely, polishing by a togishi of insufficient skill carries the danger of excessively grinding down the blade or ruining the tamahagane's beauty, irreparably damaging the sword's value. When selecting a togishi, it is important to directly examine that togishi's past polishing work, obtain recommendations from sword dealers, appraisers, and museums, and verify the togishi's training history and track record. Selecting a togishi through a trustworthy referral route is the best method to protect the sword's value.

What Polishing Reveals About Sword History

Polishing is not merely a maintenance operation but also an act of deciphering the history of time that a sword has experienced. Traces of old damage, marks of corrosion from rust, and remnants of blade damage that appear during polishing eloquently speak to what history the sword has survived. An excellent togishi pursues the sophisticated balance of maximizing respect for these historical testimonies while simultaneously drawing out the sword's maximum beauty. Excessive removal of historical traces damages the sword's historical testimonial value, while conversely prioritizing beauty too much can result in the loss of important information. Maintaining this equilibrium requires, in addition to technical mastery, deep respect for history and aesthetic insight. Polishing is a bridge connecting the sword's past and future, and the togishi is the builder of that bridge.