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JCK Original Kagayaki CarboNext Limited, KC-SP Large Extra Wide Gyuto 270mm (KOMAGIRE, 10.6 inch)

Availability: Normally ships the same day

Our innovative KAGAYAKI CarboNext product range uses a next generation carbon tool steel that we call “CarboNext”. Our CarboNext blades allow you to enjoy all the usual advantages of traditional high carbon steels (i.e.: Excellent edge sharpness, excellent edge retention and ease of sharpening), but they offer the additional benefit of improved rust resistance.

The blade is made of solid CarboNext special high carbon tool steel that is hardened to HRc. 59-61. The knife features superb fit and finish, full tang construction and a comfortable Rosewood handle. Its thin blade has a slow gradual taper and is finely ground, which results in excellent cutting performance and blade balance.
Because CarboNext knives offer greater rust resistance and ease of maintenance than regular high carbon steel knives, we particularly recommend them to first-time users of carbon steel knives. Professionals and serious amateurs will love their superb blade geometry, cutting performance and quality construction.

Recently, the craftsmen who make our CarboNext knives, Team Gotoh, found a small batch of long discontinued blades called KOMAGIRE. These Large, Extra Wide / Tall Gyuto 270mm blades were originally used for making a special butcher’s knife, but Team Gotoh has used these rare blades to create a small batch of limited edition CarboNext Special Gyuto knives for JCK.

A limited quantity of these Special Gyuto knives are now available (25 pieces total). If you are a professional chef who regularly processes meat, or a professional butcher who needs a real workhorse knife, we highly recommend these Gyuto.

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 a true multi-purpose knife.

    Knife Model: JCK Original CarboNext Limited, Large Extra Wide Gyuto 270mm (KOMAGIRE, 10.6 inch)

    Blade Material:  CarboNext (Next generation of Carbon Tool Steel material)

    Rockwell Hardness (HRc): 59 to 61

    Blade Grind and Edge Shape: Double Bevel Edge 70/30

    Handle Material: Rose Wood Handle

    Saya Included: No.

    Gyuto 270mm (10.6")
    Cutting edge length: 275mm (10.8")
    Total Length: 400mm (15.7")
    Blade Thickness: 2.4mm (0.09")
    Blade Width: 70mm (2.7")
    Handle Length: 123mm (4.8")
    Total Weight: 322g (11.5oz)



    Master Craftsman modifies edge shape and bevel for left hand use by hand sharpening process at the following additional cost:

    • Petty + US$6
    • Santoku, Gyuto + $10

    Left handed versions are normally in stock for immediate shipping. However, when it became out of stock, please allow 3 to 6 days for shipping.

    For your information, many of the Japanese Kitchen knives come originally with double bevel edge sharpened 70/30 (face side/back side) for Western style knives. This geometry came from Japanese Traditional knives with single bevel edge and Shinogi blade construction. This is one of the special features and reasons why Japanese knives have an excellent cutting performance.

    However, this 70/30 edge geometry is designed for right hand use, so we have a service to modify it to 30/70 for left handed users with re-sharpening process by skilled craftsman.

    Information About The Care & Maintenance of CarboNext Knives
    While our CarboNext knives have better rust resistance than other plain carbon steel knives, they will discolor and rust if not cared for properly. To keep your knife in good condition, please do not leave it in wet or salty conditions for a long time. After hand washing the knife, we recommend that you carefully rinse the knife with plain warm water and dry it with a clean cloth. It is important to make sure that there is no water left between the blade tang and the handle, or bolster, because this can lead to corrosion. 

    We believe the quality and cutting performance of Japanese knives are the best in the world, and hope you enjoy fine craftsmanship and sharp edge with your new knife. With proper cares, every Japanese knife should be your special cooking partner for long times.



    This is the Carbon steel blade kitchen knife that can get rust and discolor easily, and requires extra care and attention 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 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 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
    4.5 Based on 4 Reviews
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    Filter Reviews:
    Alfred P.
    United States United States
    I recommend this product
    'The Grand One'

    A stately knife that is solid, secure, and useable for many tasks. One always needs a knife that can do anything but, especially needed for those huge produce; melons, winter squash, or to slice bread. This is the knife that feels solid and a little heavy which is reassuring of its capability to do the task. It takes a nice edge-not sure of its retention yet. For the talented cook this knife can chop, slice, mince... a grand knife. I did not give it full stars for one reason. The handle does not complement this blade. It requires a handle displaying grandness. I love the knife. I bought two as gifts-one to my daughter, which I will have the pleasure to use occasionally. The other to a cook who intends to use as his primary cooking knife.

    JapaneseChefsKnife.Com JCK Original Kagayaki CarboNext Limited, KC-SP Large Extra Wide Gyuto 270mm (KOMAGIRE, 10.6 inch) ReviewJapaneseChefsKnife.Com JCK Original Kagayaki CarboNext Limited, KC-SP Large Extra Wide Gyuto 270mm (KOMAGIRE, 10.6 inch) ReviewJapaneseChefsKnife.Com JCK Original Kagayaki CarboNext Limited, KC-SP Large Extra Wide Gyuto 270mm (KOMAGIRE, 10.6 inch) Review
    MR .
    Canada Canada
    I recommend this product
    Super Knife of all Knives

    I knew I am going to be surprised by another high quality knife from JCK because it wasn't my first Knife purchased from JCK, BUT let me tell you: THIS KNIFE DOES MAKE MY ZWILLING AND wusthof CLASSIC LOOK MISIRIBLY WORSLESS TOYS IN COMPARESEN. So you get my point. It is a very agile, sharp, large, durable, and comfortable Knife you could possibly find. As matter of fact I ordered two and I am really happy about that. Seriously you get highest quality for the money you spend at JCK no matter what you buy. Excellent knife in every aspect you look at it at the same time simple as it could be. you must hold one in your hand to get what I mean. Highly recommended while supply last.

    Carlos A.
    Spain Spain
    I recommend this product
    Carbón Next 10.6 inch Gyuto.

    Its a beatiful knife. I was impressed because is really big, but it’s light and easy to work with. Fast shipping!!

    JapaneseChefsKnife.Com JCK Original Kagayaki CarboNext Limited, KC-SP Large Extra Wide Gyuto 270mm (KOMAGIRE, 10.6 inch) Review
    Poland Poland
    I recommend this product
    This is a TOOL

    For more than a decade, My personal favorite cutting tool is japanese version of chinese cleaver. One to rule them all, in the kitchen :). All my others german and for the most part japanese knives, as Pettys, Gyutos, three Santokus, Deba, Sujihikis or beloved Yanagibas are playing a supporting role. Therefore IMHO, If You are an even advanced amateur,and are looking for your next typical japanese cutlery work of art, this knife is not for you. Average made. Not as beautiful, as the others japanese wonders in Koki's magnificent Store. BUT... This is a perfect tool. Extremely long and wide blade enables "precise and stable" cutting. Huge amount of vegetables in one cut, makes our effort easier. Exactly as Mr. Iwahara wrote above : " A real workhorse knife". It seems to me, that my new favorite horse will share the work with Chinese cleaver fifty fifty ;). Blade profile and cutting edge are perfect out off the box. I am planning to do a little redesign of the handle, to make it more comfortable. This tool needs nothig more. I hope, my new dominant Trio: KC-SP Large Extra Wide Gyuto, Chinese Cleaver and newly purchased Kanetsugu Zuiun Series R-2 Damascus KZD-2 Bunka (Kiritsuke), will be perfect solution for kitchen. Kanetsugu Bunka will replace too short santoku, which I'm not satisfied with. Review of Kanetsugu's Bunka-Kiritsuke will follow... :).

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