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JCK Natures

JCK Natures Black Moon Series BM-7 Nakiri 165mm (6.4 inch)

Availability: Normally ships the same day

 These distinctive knives are the sister series to our popular JCK Natures “Blue Moon" knives and they are expertly handcrafted by the same team of craftsmen. The knives have a traditional hammer forged blade and a dark Kurouchi (“Black forged”) finish that reminded us of the cratered surface of the moon, which inspired us to name them “Black Moon”, which is 黒月 Kokugetsu in Japanese.

 The knives have a blade core of Hitachi White No.2 Japanese high carbon steel, which is sandwiched between two layers of soft iron. We think the transition between the inky-black Kurouchi finish, the silver-gray soft iron and the brilliant White No.2 steel is particularly attractive. "Black Moon" Kurouchi knives have a very good overall level of fit and finish — just like the "Blue Moon" series — and each one is hand ground and sharpened. 

 The oval-shaped Charred Chestnut wood handle (Black resin ferrule) is suitable for both right-handed and left-handed users and it beautifully matches the style of the black and silver-gray blade. Charred chestnut wood handles have been used in Japan for centuries because they offer a secure grip, even when your hands are wet.

 The Nakiri is a double bevel edged knife that is rectangular in profile and has a tall, thin blade. It is popular throughout Japan and is often used by home cooks for quickly and efficiently chopping, slicing or mincing vegetables and fruit. It is becoming increasingly popular with vegetarians.

Knife Model: JCK Natures Black Moon Series Nakiri

Blade Material:  White Steel No.2 Clad

Rockwell Hardness (HRc): 62

Blade Grind and Edge Shape: Double Bevel Edge 50/50

Handle Material: Oval Shaped Charred Chestnut wood handle with Black Resin Ferrule

Saya Included: No.


Nakiri 165mm (6.4")
Cutting edge length: 160mm (6.4")
Total Length: 305mm (12.0")
Blade Thickness: 4.8mm (0.1")
Blade Width: 49mm (1.9")
Handle Length: 124mm (4.8")
Total Weight: 143g (5.0oz)



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 Carbon steel blade kitchen knife that can get rust and discolor easily, and requires extra cares and attentions to prevent rust.

  • Please do not put the knife in the dishwasher machine for cleaning.
  • Please do not leave the knife in water or wet condition for a long time.
  • After using, please hand wash the blade, bolster and handle thoroughly, and wipe it clean and dry with soft clothes. Please apply Tsubaki oil on the blade and keep it in a dry place.
  • This is an extremely sharp knife. Please use special cares in using and storing it.
  • Unlike German made knives, Japanese knife blades are ground to thin cutting edge for sharper cutting and easier re-sharpening. Please protect the edge from hitting hard materials to avoid chipping or cracking.
  • Please do not use it to cut bone or frozen foods, any hard shell foods such as lobster and crab.
  • We recommend using Japanese whetstones to re-sharpen the knife, when it gets dull.
Customer Reviews
4.6 Based on 7 Reviews
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Filter Reviews:
Alexander S.
Israel Israel
I recommend this product
JCK Natures Black Moon Series BM-7 Nakiri 165mm

Thank You! It's a wonderful device, very comfortable in use. I strongly recommend this knife for every kitchen.

Andreas J.
Germany Germany
I recommend this product
Good Knife for the price

After my "out of the box" cutting test, i was a little disappointed, sharpness was decent but not as good as i expected, but after 1 or 2 sharpening season up to 8000/12000 grid stones, it got really as sharp as i would expect from such a steel. The handle material is nice, but beware of the height difference between the bolster and the handle, one might not find this aesthetically pleasing.

Sean B.
Australia Australia
I recommend this product
Very nice knife - thin and sharp

I'll be honest - I already had 2 nakiris, and both had good points, as well as bad. So I've been looking for one to replace them both, and this was it. It has a nice thin blade and gets/stays razor sharp. Great knife, especially for the price. Note that it is not stainless steel so you have to maintain it properly. That's pretty easy to do though: clean and dry it as soon as you finish with it. If you're willing to do this, then I definitely recommend it.

Matheus S.
Australia Australia
I recommend this product
Great knife

Perfect knife but the material gets rust pretty easy and quick

Thomas M.
Canada Canada
I recommend this product
Black Moon Nakiri

Received this beautiful knife in the usual unbelievable 4 days shipping. Not only is it a perfect lightweight tool for paring vegetable, it's also a work of art. And supreme value in its price range. Koki has done it again....a pleasure to deal with. Thomas Milsom Canada

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