Yasumasa Nagaoka raising a blade to the light
Craft — Sword Polishing

Holding an 800-Year-Old Blade in a Sword Polisher's Workshop

Polishing a blade against the water stone
Stacked polishing stones
A finger stone worked along the blade
A sword taken apart on the bench

The Craft

Sword polishing predates the blades it serves, and only about a hundred polishers remain in all of Japan. To polish is to reduce, and anyone can reduce — the skill is finishing without wearing the steel away. What is left behind has a name: togishiro, a deliberate margin of steel kept unspent for the hand that will polish it a hundred years from now.

The Supplier

Yasumasa Nagaoka works from a workshop in Asakusabashi, Tokyo. He never trained to become a polisher; he came to it sideways, as a photographer who could not work out how to photograph a blade's mirror surface — and stayed for the answer.

What Makes It Different

Most people meet a Japanese sword behind glass. Here a nearly 450-year-old wakizashi comes apart on the bench with a single bamboo peg — no rivets, no reinforcement — and is put into your hands.

The Experience

A sword this old is not meant to be swung. It is meant to be held once, and understood. In Nagaoka's workshop the blade is taken down to its parts in front of you: the fittings off, the handle away, and a single mekugi — a bamboo peg thinner than seems possible — holding centuries of history together. Then you take the weight yourself. A few minutes that rewire how you look at a sword, followed by the stones, the water, and the reason a polisher's real discipline is knowing when to stop.

  • Holding a centuries-old blade in your own hands, out of its case
  • Watching a sword come apart on a single bamboo mekugi — no rivets, no reinforcement
  • The polishing stones, the water, and what togishiro means in practice
  • Entirely private — a rarely opened workshop, paced around you
Discover Behind the scenes — Yasumasa Nagaoka
Itinerary

これは一例です — This Is a Sample Itinerary

Sample, not a fixed schedule Shown to illustrate the kind of layered day we build, not a fixed schedule. Exact timing is confirmed only after a private consultation.

Here's how a visit typically unfolds, from pickup to drop-off.

  1. Hotel pickup by an English-speaking guide, who stays with you for the visit
  2. Arrival at the Asakusabashi workshop, rarely opened to visitors
  3. A sword taken apart in front of you — fittings, handle, and the single bamboo mekugi
  4. Holding a centuries-old blade yourself: the balance, the weight, the thinness
  5. The stones, from coarse to finishing, and the water they are worked with
  6. Watching Nagaoka polish, and hearing why the discipline is knowing when to stop
  7. Conversation about togishiro — the steel deliberately left for the next hundred years
  8. Private transfer back to your hotel

What's Included

Private introduction & guidance from Yasumasa Nagaoka
Handling of antique blades under supervision
Close viewing of the polishing stones and the workshop's tools
English-speaking guide for the visit
Hotel pickup and drop-off in central Tokyo
Not included: transportation beyond central Tokyo, personal purchases
Enquire →

Meet Your Artisan & What to Know

Yasumasa Nagaoka
Yasumasa Nagaoka Sword polisher (togishi), Asakusabashi Read the full interview on Our Masters →

Only about a hundred sword polishers remain in all of Japan, and Nagaoka never trained to become one of them. He came to it sideways: first as a photographer who could not work out how to shoot a blade's mirror-like surface. What he learned instead became a philosophy — to polish is to reduce, and anyone can reduce; the real skill is finishing without wearing the steel away. He calls the margin he leaves togishiro, a deliberate reserve of steel kept unspent for the hand that will polish the same blade a hundred years from now. A craft built on disappearing rather than on being seen.

In the Workshop
A sword guard on cloth
Sword fittings laid out on the bench
  • Blades are handed to you by Nagaoka, and handled only as he shows you.
  • Keep the edge away from yourself and from others at all times — these are working antiques, not replicas.
  • Please don't touch the polished surface with bare fingers; skin oils mark it.
  • The stones are graded and kept in order; they are handled by the workshop only.
  • Photography is welcome; your guide will say if a particular piece is an exception.

About This Experience

Will I really get to hold a real blade?

Yes — under Nagaoka's direct supervision, and handled exactly as he shows you. These are genuine antiques, not replicas.

Do I get to try polishing?

Polishing an antique blade is not something a visitor can practise on. What you get instead is the stones, the water and the reasoning — and a close view of the work being done.

Can I join if I don't speak Japanese?

Yes — an English-speaking guide is present throughout.

How many people can join?

The workshop is small and given over to your party alone — no other guests are hosted during your visit.