HAP-40 Nakiri Black 170mm (6.7") - blade
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HAP-40 Nakiri Black 170mm (6.7") is a kitchen knife from our new HAP-40 series which we designed in collaboration with the Yoshida Hamono smithy. This nakiri will make your vegetables fly. With this series, we fused Japanese tradition and knowledge of blade design and materials processing, and what came out is a versatile kitchen knife made of powder steel that is simple to use and maintain. To top it off, it boasts incredible properties, characteristic of only the best performing and most practical Japanese blades!
HAP-40 Nakiri Black embodies the best characteristics we could possibly expect from a kitchen knife:
The nakiri shape was designed for cutting vegetables and is perfect for either long or short cuts, while the thin tip allows for precise work. Nakiri aka Nakiri Bocho is a traditional Japanese knife with a square, thin blade and a deep, flat belly. Since the entire flat edge of the knife touches the cutting board at once, in one clean, vertical movement, there is no need for a horizontal pull or push. This also means that you won’t be turning the vegetable into an “accordion” of pieces still clinging together by a thread. Due to its characteristics, it’s mostly intended to be used for chopping veg, but you can still use it as a good all-rounder in the kitchen.
This knife is without a handle so you can fit your own. Browse our selection of handles and create your own, custom-looking knife! If you would like that we fit the selected handle to the blade for you, select Handle fitting service when adding the blade to the cart.
The secret of this knife lies in extremely (68 HRC!) hard core made of a somewhat exotic and currently one of the most mysterious and attractive steels produced in Japan (at least as far as kitchen knives are concerned): Hitachi’s HAP-40 steel that fits into the category of modern and technologically advanced steels. HAP-40 is fine-grained enough to sharpen very well, and knives from this steel keep their sharpness 3-5 times longer than traditional knives. An interesting fact is that, considering it is a powder steel, it has an extremely small content of chromium (around 4%) and can react as a high-carbon steel in specific circumstances.
This steel is heat-treated to an incredible 68 HRC, yet it can still be relatively easily sharpened on whetstones. It is extremely tough, and so not as likely to chip along the edge as the steel used in traditional knives.
COMPOSITION: 1.27–1.37% carbon (C), 3.70–4.70% chromium (Cr), 5.60–6.40% tungsten (W), 4.60–5.40% molybdenum (Mo), 2.80–3.30% vanadium (V) and 7.50–8.50% cobalt (Co).
Osamu-san chose a warikomi (also called “split and insert”) method. A glowing hot piece of iron is split and a piece of steel is inserted. The new material is now forged into one piece composed of a very hard steel core in a jacket of two external layers of softer, stainless steel. This creates a highly durable kitchen knife with a slightly more pliable core. The main advantage of these knives is that they are thin, sharp and retain their edge very well.
→ Read more on Blade construction: Lamination.
It has a double bevel (symmetrical) blade.
The blade has a dark finish which is the reason why this look is also called kuro-uchi - the word “kuro” means black. This look is traditional and robust, with an unprocessed top part of the blade that has already developed a dark patina.
→ Read more on Blade construction: Blade finish.
About Yoshida Hamono:
The knife is manufactured at the smithy of Yoshida Hamono in Japan, a family company with an age-long tradition in manufacturing state-of-the-art tools and Japanese swords, i.e., katanas, by hand. Yoshida Hamono has a great deal of experience forging ZDP-189 steel in the traditional manner.
|Hardness (HRC scale):||68
|Overall length:||260mm (10.3")|
|Blade length:||170mm (6.7")|
|Spine thickness:||2.1mm (0.08")|
|Weight:||135g (4.8 oz)|
|Handle type / wood:||no handle|
|Handle size recommendations:||M|
Use & Care:
- Handwash in warm water and towel dry
- Use a sharpening stone (not a honing steel!) to sharpen your knife
- Do not cut frozen foods and meat bones
- Do not put the knife in a dishwasher
- Read our comprehensive guide on proper Maintenance of Kitchen Knives.
Still doubting which type of Japanese knife should best fit your needs? We created a quick, 5-steps quiz to help you find the perfect knife based on your cooking skills and the type of food you prepare.
Check our selection of Japanese handles. This is your chance to put together a one-of-a-kind knife that is perfectly suited to your taste and needs. Choose the option BLADE FITTING when adding a handle to the cart if you want us to install the handle to the blade for you. 👇
If you’re a Japanese Knives lover, this is the place to go to!!
Great customer service, very helpful and eager to fulfil your needs, along with their great passion and love for what they do.
Amazing quality knives, with a great delivery service.
5 Stars in every aspects!!!
I am located in the US. I bought a Yoshida Hamono HAP 40 wide gyuto. The knife performs extremely well. The transaction went smoothly. It was a pleasure to do business with this company.
The knife arrived damaged through the post . I contacted Sharp Edge and Urban was very helpful and sent me a new knife , without any complications. I can't recommend them enough .
very fast delivery
As with all new shops I buy from I like to be careful! Check them out and just be careful even more so when buying something expensive.
So I did my research but decided to side with caution and pay via paypal, I should not have worried !!!
Bought and paid for my knife on Friday morning and it was delivered to the UK on the Monday, how good is that.
The knife is very nice and also one I had been looking for for a while si I am very happy, next time I will pay by bank transfer as I have a Euro balance which helps.
Very nice to deal with and I have been through Slovenia on many occasions so nice to hear they are going Global.
At last i find my knife… yeah. Great product and work already with it. Worth every Cent. 🤩
Very good sorted Shop with beautyful things and gifts. What ever you need for your japanese
knife expirience…. they have it. 😎
Also the delivery was professional, correct and safe. And on time (3 days to Germany). Always
getting delivering status and informations. Perfect!
Great Job and thank you so much. Domo arigato gozaimasu!
Thanks for what you are doing, one of a few e-shops in EU with japanese knives.
Fast delivery (on third day it was in Prague/Czech republic)
High level product, delibera on time, very nice and funny packaging!! 😆 Thank you so much!
Un cuchillo precioso, me encanta el diseño y su agarre. No le doy 5 estrellas por que lo tuve que afilar nada más recibirlo, al afilado de fábrica le daría tan solo un 5/10. creo que un cuchillo como este debería llegar afilado al cliente al máximo de su capacidad.
From the knives that I’ve purchase to the ones I’m currently waiting for are phenomenal. My current daily driver is a Hokiyama 240 wa gyuto with your King 1000 Big Mama stone. Sat there laughing at the description. Currently sold my Sous Chef to get the current knife I’m using, thanks to Urban for helping me out. Looking forward to doing more business with SharpEdge.
I bought HAP-40 santoku Black tokyo night for my husband birthday 🥳!
Was absolutely successful 🙏🏻
the service is excellent, the helpfulness is perfect, the delivery is correct and fast, the product is impeccable, high quality, incredible sharpness the service is excellent, the helpfulness is perfect, the delivery is correct and fast, the product is impeccable, high quality, incredible sharpness ❤️
Great service, delivered internationally as arranged. Would definitely do business with Sharp Edge again!
Yesterday I cooked a Chinese meal for a couple of friends: a main mie dish and verious side dishes. Preparing all the vegetables and meat with this Santoku was a joy: effiortless and precise cutting. Probably this inspired me to be as precise in the cooking itself, because we all agreed that it was the best version of this recipe I ever made.
This is the second knife I purchased from SharpEdges. The first one - a Yoshida kiritsuke 135 mm black HAP-40 is also very good. I like the (almost) minimalistic simple but (almost) perfect finish of these Yoshida blades and handle.
All in all I regret that I did not discover your shop earlier. I already have a nice collection of other Japanese knives with different steels and shapes. No need on the short term for replacements or filling some gap. But who knows?
Delivery by DHL Express from Ljubljana to the Netherlands is okay but not perfect. Oh well. Who cares?
Thanks guys for the good service, the European sense of humour and the - especially that - great products.
Well received and everything in great condition, great knife bag and the blade covers fits perfectly... Thanks