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 comfortable octagonal magnolia wood handle, which is fitted with a buffalo horn ferrule. 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 Magnolia 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: 200g
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.
Excellent out of the box sharpness. I like sukenari’s profile for their gyuto and this 270mm is perfect.
I glad admit I am a Sukenari fan and this knife does not disappoint. This is my first foray into HAP40 steel. The simple elegance of Sukenari knives, to me, is exquisite and the performance is second to none. I highly recommend this knife and this brand!
nice edge retention and perfect hrc
A great quality knife!
Very good shopping experience!!! Will definitely by from japanesechefsknife.com again. Knowing this steel could be hardened by Sukenari’s to HRc. 68, I had to get one and try it out. I am SG2 user. By using it for couple weeks, I think this knife hold its edge better than SG2, but I could feel it is more brittle. I only wish this knife could be made thicker so I would be more comfortable using it to cut harder vegetable like lotus roots and carrots. I know we should probably not use this knife for that purpose, but if you were to do some heavy lifting cooking at home, versatility is very important. Right now, when cutting harder ingrediencies, I just switch to a different knife. This knife is to precious to be chipped for me. I am very happy with this knife. Very sharp out of the box, good handling. I sometimes leave the knife with water not cleaned for hours, never rust. Most importantly, it looks good with its beautiful mirror-like finish. I have not gotten to the point where I need to sharpen it yet, so can't comment on how easy to sharpen. I would honestly pay more than $500 for this knife. For $305, this was a steal. You should try it yourself.