• Gyuto 240mm MH Go Mai Damascus, Nickel & Apex Ultra Core
  • Gyuto 240mm MH Go Mai Damascus, Nickel & Apex Ultra Core – detail view
  • Gyuto 240mm MH Go Mai Damascus, Nickel & Apex Ultra Core – side profile
  • Gyuto 240mm MH Go Mai Damascus, Nickel & Apex Ultra Core – handle detail
  • Gyuto 240mm MH Go Mai Damascus, Nickel & Apex Ultra Core – blade close-up
  • Gyuto 240mm MH Go Mai Damascus, Nickel & Apex Ultra Core – view 6
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Gyuto 240mm MH Go Mai Damascus, Nickel & Apex Ultra Core

Gyuto 240mm MH Go Mai Damascus, Nickel & Apex Ultra Core

By Collaboration

No longer available

Karol Karyś

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Back in September 2022 we visited artisan blacksmith Martin Huber in Austria and produced a beautiful GoMai billet together, an incredible Apex Ultra core clad in a dense Damascus with a nickel diffusion layer. The steel was enough to produce just two knives. We sent the steel to Karol Kary's in Poland who then produced this incredible 240mm Gyuto.

The knife features some next level work from both artisans, but Karol put hours into the texturing and engraving of the steel and handle creating an incredibly unique and truly beautiful piece.

In addition to the aesthetics of the blade the performance is something out of this world, with a ground and forged geometry inspired by the walkschliff. 

The texturing means great food release, this thing will cut!

Product Specification
  • Blade Type:
  • Edge Length: 240mm
  • Spine Heel: 3.66mm
  • Spine Mid: 1.98mm
  • Spine Tip (20mm before): 1.2mm
  • Blade Height: 55.9mm
  • Weight: 263g
  • Cutting Edge Steel:
  • Steel class: Carbon
  • HRC: 66
  • Blade Construction:
  • Blade Finish: TexturedAcid Etched (Forced Patina)
  • Grind:
  • Handle Construction:
  • Handle Materials: Micarta, Copper
  • Handedness: Ambidextrous

Blade type

Gyuto

牛刀

The Japanese take on the Western chef's knife, and the most versatile blade in a modern kitchen. A gyuto carries a long, gently curved edge — most often 210 to 270 mm — that allows both push cuts and a rocking motion, with a pointed tip for fine work and enough height at the heel to keep knuckles clear of the board. It handles proteins, vegetables, and herbs without complaint, which is why most cooks reach for it first.

Compared with a European chef's knife, the gyuto is usually thinner, harder, and lighter, ground to a finer edge that rewards good board technique and regular honing. That same thinness is the trade-off: the edge is less forgiving of bone, frozen food, and twisting cuts, and it asks for a little more care in maintenance in exchange for its keenness.

View full knife type guide →

Cutting edge steel

Apex Ultra

Low-alloy fine-grain carbon tool steel

Typical HRC
64–68
Corrosion class
Carbon
Production
Conventional
Origin
Austria (developed by Tobias Hangler and Marco Guldimann; project led by Hangler at Messerschmiede Hangler)

Apex Ultra is one of the most carefully engineered non-stainless kitchen knife steels in modern circulation, and the project of an Austrian smith — Tobias Hangler — who set out, with Marco Guldimann, to design a steel for the kitchen rather than borrow one from another industry. It carries roughly 1.25 percent carbon, around four percent chromium, modest tungsten and molybdenum, and a small vanadium addition. The composition is tuned to produce a fine, evenly distributed carbide structure that supports hardness up to 67 HRC while delivering toughness comparable to 52100 at the same hardness — a combination that is the entire point of the steel.

What this means for a cook is unusual permission. You can ask a maker to grind an Apex Ultra knife thin enough that a White #1 owner would call you brave, then ask for the heat treatment to land at 65 HRC, and the resulting edge will hold for longer than Aogami Super without microchipping. It sharpens cleanly on natural and synthetic stones alike and patinas slowly because of the chromium content, though it is not stainless and should be treated as a carbon steel.

Apex Ultra has become a signature steel of the European maker community, and the Modern Cooking catalogue carries an unusually deep bench of smiths working in it. Tobias Hangler himself heads that group, alongside Marco Guldimann, Benjamin Kamon, Martin Huber, Jonas Johnsson, Karol Karyś, Birch & Bevel, and MCx. It is genuinely a step forward — one of the relatively few cases where the marketing claims and the underlying metallurgical data are saying the same thing.

View full steel guide →

Blade construction

Laminated Steel

A category covering knives built from multiple layers of different steels forge-welded together. The hard cutting steel is sandwiched between softer outer layers (cladding) that protect the core, add toughness, and often contribute visual contrast.

The most common laminated constructions in the Modern Cooking catalogue are:

SanMai (三枚) — three layers: hard cutting steel in the centre, softer cladding on both sides. The traditional and most common form.

GoMai (五枚) — five layers: a hard core, two intermediate layers, and two outer layers. Adds visual depth and structural complexity.

KuMai (九枚) — nine layers: similar logic, with more cladding layers for additional pattern and structural variation.

GoMai and KuMai are often chosen not only for the additional layers and visual depth, but also because the intermediate layers can act as a nickel diffusion barrier — limiting carbon migration out of the core into the cladding during forge welding, and protecting the core's intended carbon content through the heat of the forging process.

In all cases the cutting performance is determined by the core steel; the outer layers are cosmetic and structural. The lamination contributes corrosion protection (when a stainless jacket clads a carbon core), reduced reactivity, and the visible boundary between core and cladding that gives the knife its character.

View full construction guide →

Grind

Walkschliff

A traditional Solingen grind — also called a kettle or kessel bulge grind — in which the blade is hollowed high on the side so its thickest point sits a little below the spine rather than at it. Below that bulge the steel is taken down to an extremely thin, finely convexed cutting edge, combining the rigidity of a thick upper blade with the keenness of a very thin one.

The Walkschliff is among the most demanding grinds to execute, historically reserved for the finest German knives and requiring years of a grinder's experience to do well. For the buyer it is a high-craft European alternative to the thin flat grinds of Japanese knives — strong, stable, and keen — but it is a hand-ground specialism, and a knife that carries it is priced for the skill it took to make.

View full grind guide →

Handle construction

Hidden Tang

A construction in which the tang runs into the handle but stays concealed inside it, rather than showing between two scales. A narrower tang — a full-length stick or a shorter projection — is set into a drilled or burned channel in a one-piece handle and secured with adhesive, a friction fit, or a threaded fitting drawn up against the blade. This is the traditional construction of Japanese wa-handles and many European hidden-tang knives.

The design puts the handle material in charge of the look and feel: a single piece of wood, horn, or composite — often with a ferrule or spacers at the front — is shaped into any cross-section the maker wants, from the classic octagonal and D-shaped wa profiles to fully rounded Western forms. With no steel showing along the grip, the handle can be slim and light, and is frequently made to be removed and replaced, with the balance sitting toward the blade.

View full construction guide →

Shipping & Returns

Shipping

We process orders 5 days a week (Monday - Friday) and ship from our shop in Sydney, Australia. We ship with FedEx, UPS and DHL.

We are happy to offer free international shipping on a variety of orders depending on location and order value.

Free Shipping Regions and Minimum Order Values

For Australia and New Zealand the minimum is $500AUD. For the rest of the world it is approximately €1000EUR. The discount is applied automatically when you reach the minimum cart value at checkout.

Returns

If you're not entirely happy with your purchase, you can return it within 14 days of delivery for a refund. The item must be in its original condition with all original packaging.

  • Returns are accepted for 14 days
  • The customer is responsible for return shipping costs
  • A 15% restocking fee may be applied to change-of-mind returns
  • We do not accept returns on second-hand items for change of mind

Faulty or Damaged Items

You must notify us within 5 business days of receiving your order. Photographic evidence of damage is required. Once approved, Modern Cooking will cover return shipping costs.

Product Care

Cleaning: Clean by hand with warm water. Avoid wetting the handle when possible.

Sharpening: We advise using whetstones to sharpen your knives and a honing rod or steel to maintain the burr between sharpening sessions.

Reactive Steels: Reactive steels like Aogami Super, Apex Ultra or premium reactive German and Swedish steels are susceptible to rust if not properly cared for. Keep the knife dry between uses and when storing for longer periods, wiping the blade with Tsubaki oil or another food-safe oil is a wise choice. A patina can be a beautiful personal feature on your knife and helps to stop rust forming.

Handle Care: For non-stabilised wooden handles, apply Tsubaki oil or another food-safe oil from time to time. Food-safe wax can be applied to both stabilised and non-stabilised wooden handles. Never apply hot wax or oil as you risk warping or damaging the handle.

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