Sakai Uchihamono — Sakai forged cutlery — is the collective name for blades made in and around Sakai, Osaka, and is a government-designated Traditional Craft of Japan. Most of the traditional knives used by Japanese professional chefs are said to come from Sakai, and their sharpness continues to win over cooks worldwide.
On this page, Hayashi Hardware — founded in 1872 — explains the history, characteristics and appeal of Sakai forged cutlery.

Origins — a smithing town born alongside ancient burial mounds
Smithing in Sakai dates back to the 5th century. When the Nintoku Mausoleum — one of the largest burial mounds in the world — was built, smiths gathered in Sakai to make the tools, and this is regarded as the beginning.
In the 16th century, firearms and tobacco arriving from Portugal proved a turning point. Sakai became a major center for gun-making, and that precise metalworking passed into knife-making. Sakai's tobacco-cutting knives became famous for their sharpness, earning a seal of quality from the shogunate and nationwide distribution as an official product — this is where Sakai's reputation for sharpness was established.

The defining feature — a complete division of labor
What sets Sakai apart from other knife-making regions is its complete division of labor.
| Stage | Artisan | Work |
|---|---|---|
| Forging (kaji) | Blacksmith | Heats and hammers the steel into shape, then hardens it by quenching |
| Sharpening (hatsuke) | Sharpener | Grinds and polishes through many stages to put on the edge |
| Handle-fitting (etsuke) | Handle maker | Shapes the wooden handle, fits the ferrule and assembles blade and handle |
Each knife passes through the hands of three to five specialist artisans. Because each artisan spends a lifetime mastering a single stage, every step is refined to the limit — this is how Sakai achieves a sharpness that mass production cannot reach.

This tradition has been handed down for some 600 years, and in 1982 Sakai forged cutlery was designated a Traditional Craft of Japan.
Why professional chefs choose Sakai knives
- Quality of cut: slicing without crushing cells keeps sashimi edges crisp and vegetable surfaces clean, improving flavor and texture.
- Edge retention: careful steel selection and heat treatment keep a fresh edge sharp for longer.
- Made to be resharpened: with proper care they last for decades. To a professional, a knife is a partner, not a consumable.
- Specialized shapes: yanagiba, deba, usuba and more, each suited to specific Japanese techniques.
Sakai Takayuki — a leading brand of Sakai cutlery
Sakai Takayuki is a leading Sakai forged cutlery brand of Aoki Hamono Seisakusho, a long-established Sakai maker. Its wide range runs from traditional Japanese knives to practical stainless models, and it is well known both among Japanese professional cooks and internationally.
The Sakai Takayuki series we carry:
- INOX Wa series (AUS-8 stainless) — rust-resistant and easy to sharpen, a professional-kitchen standard and a great first Japanese knife
- Kurokage series (VG-10, hammered, fluorine-coated) — a hard, jet-black blade built for sharpness and food release
Kurokage series (VG-10)
Kurokage Santoku 170mmfrom ¥22,800View product →
Kurokage Gyuto 210mmfrom ¥23,800View product →
Kurokage Petty 150mmfrom ¥17,800View product →INOX Wa series (AUS-8)
INOX Wa Santoku 170mmfrom ¥13,800View product →
INOX Wa Gyuto 210mmfrom ¥14,800View product →
INOX Wa Petty 150mmfrom ¥11,800View product →Prices shown are for the lowest-priced handle, including Japanese consumption tax. Each knife is available with Ho wood, Wenge or Ebony handles (Petty in selected handles only).
For the brand background and how to choose a series, see What is Sakai Takayuki?
Frequently asked questions
Q. How is Sakai cutlery different from Seki cutlery (Gifu)?
Seki is known for advanced mass production, while Sakai is known for handcrafted knives made through a division-of-labor system. Sakai is generally regarded as strongest in professional Japanese knives, and Seki in mass-produced household knives.
Q. Where can I buy Sakai forged knives?
From shops in Sakai itself and from retailers. Hayashi Hardware, founded in 1872, carries Sakai forged knives from the Sakai Takayuki brand.
Q. Are Sakai knives suitable for home use?
Yes. Stainless models such as INOX Wa and Kurokage in particular resist rust and are easy to care for, making them ideal for home kitchens.
Q. Why are Sakai knives more expensive?
The price reflects the many hand-worked steps carried out by multiple specialist artisans. In return, they can be resharpened and used for decades, making them better value than mass-produced knives over the long run.