Hitachi HAP-40 is currently one of the most mysterious and attractive steels produced in Japan. This hi-tech powdered metal steel alloy has a very rich chemical position and, when it is forged and heat-treated properly, we believe that it probably offers better cutting performance and edge retention than any other high-quality Japanese steel.
Sukenari’s knowledge of traditional forging processes and their extensive experience with modern, high performance, steels proved to be invaluable while perfecting these new HAP-40 knives. Master Hanaki, Sukenari’s innovative and energetic knife maker and Master forge-smith, has successfully managed to extract the best cutting performance and edge retention from these HAP-40 knives (HRc. 68). They are perfect for customers who love testing exotic hi-tech steels, or those who appreciate knives with outstanding cutting performance and edge retention.
Master Hanaki believes that these new HAP-40 knives offer very competitive cutting performance and edge retention relative to his ZDP-189 and Aogami Super knives. In addition, HAP-40 offers better toughness than ZDP-189, - even when it is heat-treated to a higher Rockwell hardness. Consequently, Master Hanaki has confidence that the new Sukenari HAP-40 knives will prove to be some of the best performing and most practical knives that Sukenari offer.
Sukenari HAP-40 knives are fitted with a beautiful octagonal Ebony wood handle, which has a buffalo horn ferrule and White Spacer. A Magnolia wood Saya (Sheath) is also included with the knife for safekeeping
The Gyuto is the Japanese version of the classic Western Chef’s knife. It can be used with a variety of different cutting techniques to achieve a wide range of kitchen tasks and is suitable for cutting the vast majority of meats, fish, vegetables and fruits. The Gyuto is true multi-purpose knife. Compared to a Western-style handle, the lightweight traditional Japanese handle of the Wa Gyuto knife moves the balance point of the knife further towards the tip, which makes it feel more nimble and precise.
Knife Model: Sukenari HAP-40 Series Wa Gyuto
Blade Material: HAP-40 Clad
Rockwell Hardness (HRc): 68
Blade Grind and Edge Shape: Double Bevel Edge 50/50
Handle Material: Octagon Shaped Ebony Wooden Handle with Water Buffalo Horn Ferrule
Saya Included: Yes.
Wa Gyuto 210mm (8.2")
Wa Gyuto 240mm (9.4")
Wa Gyuto 270mm (10.6")
Cutting edge length: 260mm
Total Length: 415mm
Blade Thickness: 2.4mm
Blade Width: 52mm
Handle Length: 140mm
Total Weight: 242g
This knife comes with 50/50 double bevel edge geometry for both right and left handed use.
For your information, Japanese Kitchen knives are generally designed for right hand use with a slightly thicker and rounded grinding on the right side blade and a less rounded (almost straight flat) grinding on the left side blade. However, both right and left hander can use the knives that have double bevel edge sharpened 50/50 without problems.
We believe the quality and cutting performance of Japanese knives are the best in the world, and hope you enjoy the fine craftsmanship and its sharp edge of your new knife. With proper cares, every Japanese knife should be your special cooking partner for a long time.
This is the Powdered High Speed Tool Steel blade kitchen knife that has a rust resistance for easy maintenance. However, it may get rust, if kept in wet condition.
Blade geometry is neither the thinnest nor most robust, but is a good for general use. The horn and ebony grip is nicely shaped and looks good. Good edge holding, the factory edge has held up to several months of home use without needing resharpening. HAP-40 isn't stainless, but the corrosion resistance has been sufficient for me - making sure to wash and dry the blade immediately after use, it's discoloured a bit but no other noticeable corrosion.
It's a very nice and beautiful knife. The HAP-40 steel can get razor sharp and stays razor sharp for a long time. I use a natural sharpening stone occasionally to make it stay razor sharp.
I’m give five stars because it’s great quality and fast shipping