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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
4.7 Based on 11 Reviews
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Filter Reviews:
Mr A.
United Kingdom United Kingdom
I recommend this product
Best knife I have ever owned

This is my first japenese blade and I am so impressed by the sharpness. The blade is light but feels robust with cutting. It can even slice through my sourdough without making any crumbs !

Jaime S.
Canada Canada
I recommend this product
Very nice!

I got this knife for my sister, but I might soon get another one for myself. I really liked the feel in my hand and its design. Very nce!

Jim G.
United States United States
I recommend this product
Solid performer, fair price

So I previously bought a $250 knife from a competitor and it chipped the fifth time I used it. The seller was combative, uncooperative, and engaged in shaming (echefknife.com). They're in Beverly Hills so why am I surprised? Then I came here. This is about a 1/3 of the price and has already outlasted the 'fancier' one. The sharpness out of the box was excellent - other reviews varied. It is reactive which, if you don't know at this point, means it rusts. That's normal and adds to a 'rustic patina' that some desire. Wash it and dry it immediately (as you should) and this is not an issue. While it is durable, this is a knife that likes to be cared for. Heft/weight wise I'd say it in the middle to slightly heavy. I have felt heavier for sure. Everything is solid - no play in the blade/handle junction. After about a dozen uses, edge retention is very good. There have not been any burrs or imperfections. Only 2 improvements I can think of 1. I love me an octagon shaped handle 2. It would be nice if a sheath came with it or was offered, perfect fit not a universal one. Like I said, this is a solid performer. As I learned, you don't always get what you pay for. Sometimes the underdog is your best bet. olid performer. As I learned, you don't always get what you pay for. Sometimes the underdog is your best bet.

JapaneseChefsKnife.Com JCK Natures Black Moon Series BM-7 Nakiri 165mm (6.4 inch) Review
A JapaneseChefsKnife.Com Customer
Charles B.
Luxembourg Luxembourg
I recommend this product
Perfect, as expected

Perfect all round veggie knife, excellent quality and great price/quality ratio

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.

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