Rockstead knives are manufactured by the Japanese company Ishida Industrial Company Ltd., founded in 1931 by President Ishida Yasukichi. The company's main activity is the production of agricultural hand tools. In 1976, the company established a special department for the development and production of automatic equipment to automate complex mechanical processes in part processing.

In the late 90s, the renowned Japanese gunsmith Kitano Katsumi contacted Ishida Industrial Company Ltd. He proposed organizing the serial production of knives he designed. By that time, Master Kitano had developed his unique asymmetric blade profile, called "Kitano Edge," which none of the existing knife companies had attempted to reproduce on an industrial scale.

The second-generation president of Ishida Industrial Company Ltd., a great admirer of Kitano's work and a knife enthusiast, took up this difficult task.
The first knives under the Rockstead brand with a "Kitano Edge" cutting edge appeared on the market in 2000 and took top spots on lists of the world's most iconic knives.
The name "Rockstead" comes from the English version of the Japanese word Ishida (from Ishida Industrial Company Ltd), which means Stone Field in Japanese.

 The highest quality, practical design, incredible sharpness, and the blade's resistance immediately became the trademark of this brand. Later, Rockstead developed its models with a lenticular profile of the Honzukuri cutting edge.

All knives manufactured by Rockstead are categorized as factory-custom, meaning they are half-automatic and half-hand. This is because automatic CNC machines allow you at the initial stage to create parts with an error of only a few microns (impossible accuracy for manual production), and manual sharpening and final polishing allow you to give blades of the most complex geometry a fantastic sharpness and to mirror that can be reproduced by any automatic machine. It is important to note that the manual part of the work takes up most of the production process. Still, it is the combination of automated and manual labor that makes it possible to create knives not only of high quality but also of the "formula-1" class in the knife world.
Rockstead produces about 1500 knives of all models per year. All parts and their processing are carried out only in factories within Japan. At the moment, 8 craftsmen are producing knives.

According to the manufacturer, Rockstead knives have three main distinguishing features:

1. The unique geometry of the Rockstead blade
Most Rockstead knives come in Honzukuri geometry. Many amateurs of Japanese martial arts know that Honzukuri, or "complex symmetric lens," is one of the fundamental classical geometries of the Japanese sword Katana. Unlike the western counterparts of the "simple lenticular" blade, the Japanese Honzukuri has a smoother geometry and a variable angle throughout the sword's length. As a result, the ease of cutting of Honzukuri is not inferior to blades with straight slopes, "Plain," which have a smaller sharpening angle RK. This effect is achieved because the resistance of the larger sharpening angle of the Honzukuri cutting edge is compensated by the highest level of polishing and the complete absence of micro saws on the RK.
Largely thanks to the geometry of Honzukuri, Japanese swords acquired the title of the sharpest and most indestructible blades in the world.
Continuing the tradition of ancient Japanese armorers and drawing on their research, Rockstead adapted the Honzukuri sword's long geometry to the knife.

2. Finishing
Due to the complex lenticular geometry and high hardness of steel, the blade's surface is processed manually on special devices called KOMP2.  In essence, KOMP2 resembles an improved "water" whetstone, in which calibrated sandpaper serves as the abrasive and special machine oil replaces traditional water.
This decision was dictated by the fact that ordinary water stones, although they can handle the complex geometry of the blade, are incredibly inconvenient to use and cannot handle high-hardness steels.
As a result of extra-fine polishing and sharpening, the blade achieves a uniform mirror finish and an incredibly smooth cutting edge without the slightest hint of micro-sawing.
It takes about 8 hours of work for the master to polish one blade.

3. Blade materials.
For blade production, Rockstead uses only the most modern knife steels. As a rule, these are high-speed cutters made by Hitachi Metals - YXR7 and stainless steel with high carbon content from the same manufacturer, brand ZDP-189. For some limited-edition models, the HAP-72 matrix quick cutter is used because YXR7 is a high-performance tool steel; the blade faces are protected with advanced DLC or TiAlN coatings to guard against corrosion while maintaining extreme surface hardness.
In summary, Rockstead represents a tier of manufacturing that stands virtually alone. The execution of their blade geometry, mirror polishing, and component fitting exceeds any production knife the RocksteadShop team has encountered in our history. We are proud to offer these extraordinary instruments to our clients. A Rockstead is an uncompromising investment in metallurgy and craftsmanship—fully supported by the brand’s limited lifetime warranty.