Hatori Kokuyō 黒曜 Series – Damascus Fillet Knife 20 cm
A long, thin blade that runs along the bone and lifts a whole fillet off a fish in one pass.
The Damascus fillet knife for fish
- 67-layer Damascus steel
- Thin 2 mm blade
- Long 20 cm blade
- Full-tang build
- Mosaic-pin handle
- Sharp out of the box
Cut with it for 60 days. Love it, or send it back for a full refund.
Descripción
A fillet knife is long, narrow and thin, so it can follow the bones of a fish and take the fillet off in one clean pass instead of three rough ones. The same blade trims silver skin from a tenderloin and slices cooked meat thin. At 20 cm it handles anything from a mackerel to a salmon side.
Kokuyō 黒曜 means obsidian, the black volcanic glass: the Hatori line of dark Damascus knives. The blade is 67-layer Damascus steel ground to 2 mm at the spine, with a flowing layered pattern over the whole face, and no two blades share a pattern. The black composite handle is a full-tang build with three steel rivets, the middle one a round mosaic pin, and a polished steel bolster. It arrives sharp out of the box.
Free shipping and a 60-day money-back guarantee.
Shipping & returns
Shipping
Free on every order. A tracking link follows the moment it leaves the warehouse. Delivery is 6–8 business days.
Returns
Sixty days. Use it in your own kitchen, and send it back within sixty days for a full refund.
Care
Wash by hand with warm water and mild soap, and dry straight away. Keep the edge with a few passes on a rolling sharpener.
Guarantee
Sixty days in your own kitchen, with a full refund when you send it back, and a 2-year warranty.
Gail Williams, today
Love at first knife
The product and the speed it was delivered with was awesome. My life from here on in will be razor sharp, luv ya
John Nulton, today
Overall very happy! Getting my Shuns back in shape
The ordering process was easy and straight forward. There was excellent communication surrounding shipping and delivery. I have two Shun knives that I have struggled with wet stone sharpening, and I'm having success with
Joey Evans, 1 day ago
So easy to use
So easy to use! Arrived fast! Made my knives super sharp! I'm a big fan!
Jana, 1 day ago
It works!
It arrived as promised and yes it works well.
J Agnew, 1 day ago
Great idea that the knife is sharpened the same
Great idea that the knife is sharpened at the same angle right along the knife edge, perfect sharpening, Many thanks John
Louise Blanchard, 1 day ago
Easy and fun way to sharpen knives
Easy and fun way to sharpen knives well. I recommend this for every kitchen as it is such a quality product that works very well. The instructions via email were very welcome also.
of, 1 day ago
The product is a great addition to any
The product is a great addition to any kitchen, placed my order just took a few days for it to arrive very efficient.
Linda JAKAB, 1 day ago
Lovely product,high quality and easy
Lovely product,high quality and easy to use. I need to practice a little more to get the edge right.
Scott Grunwaldt, 1 day ago
The materials are of very good quality
The materials are of very good quality, and the sharpening process works really well. I am still not sure when to use the 15- or 20-degree angles, so I have been using the 15 and it works very well on all my knives. They
Vito Aluia, 2 days ago
The only thing that disappoints me is
The only thing that disappoints me is the fact that you can't sharpen a more narrow knife and to do that I Have to buy another one called the Mini for $80 more!
Heng Tuck Choy Alan, 2 days ago
I use to bring my knives to a knife
I use to bring my knives to a knife shop to sharpen. This is now over. I sharpen my knives as per video instruction and it works. My knives are razor sharp. I am really happy with the result. Thank you. Alan Heng
Jean-Pascal Bourque, 2 days ago
Knife sharpener is easy to use and great results
Knife sharpener is easy to use and provides the expected results. First knife I tested it on was chipped and dull. After sharpening, it could cut a tomato without any effort.
Showing our favorite reviews
The blade: steel shaped the Japanese way
Japanese kitchen knives are made to be kept sharp, so the edge does the cutting and the hand only guides it. This blade is shaped on those principles: a fine edge, an even balance, and uncoated steel for clean contact with food.
- Fine cutting edge
- Even balance
- Uncoated steel
- Ergonomic handle
- Daily kitchen use
- Made to be kept
The knife, measured
- BLADE LENGTH
- 20 cm / 7.9 in
- TOTAL LENGTH
- 32.5 cm / 12.8 in
- BLADE
- 67-layer Damascus steel, 2 mm thick
- HANDLE
- Black composite, full tang, mosaic pin
- USE
- Filleting fish, trimming, slicing
What this knife does on the board
A fine edge goes through tomato skin, fish and meat in one pull.
The weight sits evenly between blade and handle, so long prep stays comfortable.
The blade is steel all the way through, for pure contact with food.
An ergonomic handle sits steady in the hand through a whole evening of prep.
Vegetables, fish and meat: one tool for daily cooking.
A few passes on the Hatori rolling sharpener bring the edge back in under a minute.
A Hatori knife against an ordinary kitchen knife
Over 250,000+ chefs and home cooks use Hatori
Verified buyers, in their own words.
“Didn’t realize how much easier cooking would be with proper knives. These feel amazing in the hand and glide through everything.”
“I thought my old knives were fine… until I used these. Super sharp, well-balanced, and honestly look stunning on my counter.”
“Finally a knife that actually stays sharp. Been using it daily for weeks and its still cutting like day one.”
“The craftsmanship is next level. Every detail feels thought out—from the weight to the beautiful handle.”
“Cutting meat used to be a chore. Now it feels effortless. Even my partner commented on how smooth they slice.”
“These knives completely changed my meal prep. No more sawing back and forth—I barely need any pressure.”
“I bought them mostly because they looked great, but the performance is even better. Worth every penny.”
“Honestly, I didn’t expect much at this price—but these knives beat my old $300 set easily.”
Cut with it for 60 days. Keep it for years.
60-day money-back guarantee
Use it in your own kitchen for sixty days. Love it, or send it back for a full refund.
2-year warranty
Every Hatori knife carries a 2-year warranty.
Free shipping, tracked
Every order ships free, with a tracking link from the day it leaves the warehouse.
Questions, answered
How do I keep it sharp?
A few passes on a rolling sharpener every couple of weeks keep the edge. The Hatori Diamond Rolling Knife Sharpener holds the angle for you.
How do I wash it?
By hand, with warm water and mild soap. Dry it straight away and it stays bright for years.
What is it used for?
Daily cooking: vegetables, fish and meat. The specifications above list what each blade is made for.
Is it a good gift?
Yes. A Japanese kitchen knife is a classic gift for a cook, and it arrives boxed.
What is the guarantee?
Sixty days in your own kitchen. Send it back within sixty days for a full refund.
How long does shipping take?
Every order ships free. Delivery takes 6 to 8 business days, and a tracking link arrives the moment it leaves the warehouse.
Make the switch to a Hatori knife
Join 250,000+ chefs and home cooks who cook with Hatori.
- Free shipping
- 2-year warranty
- 60-day returns
More from the Hatori kitchen
The rest of the Hatori kitchen, built to the same standard.
