Higonokami: Japan's Original Folding Pocket Knife

The Meiji-era Japanese friction-folder pocket knife, still hand-made by its only authentic maker, Nagao Kanekoma in Miki, with steels, sizes and prices.

Table of Contents

The Higonokami (肥後守) is the simple brass-handled folding knife that lived in the pocket of nearly every Japanese schoolboy through the 20th century. No lock, no spring, no screws: a blade, a folded brass handle, and a small lever you pin with your thumb. It was born in Miki, Hyōgo Prefecture in the Meiji era, and today only one workshop, Nagao Kanekoma (going since 1894), is legally allowed to stamp the name on a blade. The video below follows one being forged, ground, engraved and assembled by hand.

How a Higonokami folding knife is made (Nagao Kanekoma)
ProcessX, 17 min
https://www.youtube.com/watch?v=s9zbvjiZZdM

A short history

  • The Higonokami appeared in the Meiji era, the usual birth year cited is 1896, in Miki, Hyōgo, long the knife-making town of Japan.
  • Nagao Kanekoma's own record dates it to 1894, when the wholesaler Tasaburo Shigematsu brought a folding knife back from Kagoshima and local smiths such as Komataro Nagao started making the folded blade-and-sheath design with its thumb lever.
  • The name 肥後守 reads "Lord of Higo", Higo being the old name for today's Kumamoto. The knives sold heavily in that region and the grand-sounding title stuck as the brand.
  • A makers' union formed in 1899 to hold quality, and as cheap copies spread, "Higonokami" was registered as a trademark in 1910, reserved for the Miki guild.
  • The 1950s ended its run as an everyday tool: anti-knife campaigns plus cheap utility knives and electric pencil sharpeners. Most makers quit the trade.
  • Nagao Kanekoma, now fifth generation, is the only maker still entitled to the trademark. Near-identical knives from other smiths must be sold as a "Higo knife" or "Higonokami-style", never the real name.

How it is built

  • Friction folder, no lock. The blade stays open only because your thumb holds the lever down. Nothing clicks into place, which is also why it is not a prying or hard-use tool.
  • The chikiri lever. That tab sticking out past the spine is the chikiri. You flick it to open the blade and press it to keep the blade open.
  • Folded brass handle. The handle is a single sheet of brass folded into a U, so the blade tucks fully inside. It is stamped with the maker's name and the steel grade.
  • Laminated blade (san-mai / warikomi). A hard high-carbon core is forge-welded between softer outer steel: hard enough to take a fine edge, backed by softer metal so it does not snap.
  • Flat grind, single bevel on the classic models. Plain geometry, very sharp, very easy to maintain.

The steel options

Steel What it is Trade-off
SK carbon Japanese tool carbon steel, the entry grade Cheap, easy to sharpen; lower edge retention and it will rust
Shirogami (white paper) Very pure plain carbon steel Takes a razor edge, easy to hone; reactive, needs drying after use
Aogami (blue paper) White steel plus tungsten and chromium Best edge holding of the carbon steels; pricier, still rusts
Damascus Pattern-welded jacket over a carbon core The looker and the collector grade; most expensive

There is also a VG10 stainless-clad version if you want the look with far less rust-wiping. Carbon steel is the traditional and sharper choice, but it patinas and needs a wipe of oil.

Sizes

Hand-made, so a few millimetres vary, but the line runs roughly:

Size Blade length
Small about 75 mm
Medium about 90-100 mm
Large about 100 mm
Extra-large about 120 mm

What it costs

Rough European retail by grade. Size, finish and engraving move these around.

Grade Rough price
SK carbon EUR 20-40
Shirogami (white paper) EUR 40-70
Aogami (blue paper) EUR 50-80
Damascus EUR 90-150

The base SK model is the rare collectible that costs less than lunch. Engraved and damascus pieces, like the one in the video, climb well past the table.

How it is made (the video)

The ProcessX film is a near-silent, 17-minute "process of making" piece shot inside Nagao Kanekoma. The sequence:

  • Cut and forge the chikiri lever to its distinctive shape, drilling the rivet holes.
  • Forge the blade to shape, then harden it by heating and quenching in oil.
  • Temper it back down so the hardened blade is not brittle.
  • Rough-grind on a water wheel, both sides even, then stamp the maker's mark.
  • Fit a temporary handle, polish, then bend the brass handle to shape.
  • Hand-engrave the design: sketched, transferred onto the brass, then cut by hand, one piece at a time.
  • Rivet blade and handle together, final sharpen, rust-prevention coat, package, test.

The engraving is the highlight here, and it is what separates a few-euro everyday Higonokami from a one-off keepsake.

Where to buy

My take

The value is the lineage and the hand-work, not exotic materials. A lockless friction folder is not a hard-use knife, and carbon steel asks for a wipe of oil, but as an everyday letter-opener, box-cutter and pencil-sharpener with 130 years of history in your pocket, nothing else feels quite like it. Start with an SK or Shirogami medium to actually carry and use; go Aogami or damascus if you want the keepsake.

Further reading