Gyuto 255mm Plain Forged KU Ash Masur Heirloom


This Gyuto 255mm is a one-of-a-kind artisan forged creation by renowned Austrian blacksmith Benjamin Kamon, whose studio in Vienna has become synonymous with exceptional craftsmanship and timeless design. This unique knife is the epitome of the classic and restrained aesthetic, making it a standout piece for any culinary enthusiast or professional chef. The blade, with an edge length of 255mm, is meticulously forged from 1.2519 tungsten alloyed steel, renowned for its exceptional hardness and durability, as well as impressive sharpen-ability and edge retention. The kurouchi and signature belt finish combination give this blade a unique timeless look that stands out amongst Kamon’s more contemporary designs.

One of the defining features of this Gyuto is its exquisite balance and lightweight design, weighing in at just 222 grams. The blade’s dimensions are carefully calculated to optimize performance: a spine thickness of 4.98mm at the heel, tapering to just 0.65mm near the tip, ensure precision and control during cutting tasks. The blade height of 57mm allows for ample knuckle clearance, and versatility. 

The handle of this stunning Gyuto is inspired by traditional Japanese handles. Crafted from Ash Masur and accented with a subtle museum fit buffalo horn bolster, the handle takes the shape of Kamon’s signature Rokkaku Hanmaru heirloom design with soft straight lines. The handle’s design, much like the blade, speaks to a subdued elegance that is both functional and visually pleasing. This heirloom-quality knife is an exceptional example of what best in class high performance kitchen knives can be. 

It is beautiful, but the art is embodied in the knifes cutting performance. A testament to the rich heritage and meticulous craftsmanship of Benjamin Kamon’s Viennese workshop, making it a prized possession for those who appreciate the finest in artisan cutlery.

Product Specification

Blade Type: Gyuto

Edge Length: 255mm

Spine Heel: 4.98mm

Spine Mid: 2.42mm

Spine Tip (20mm before): 0.65mm

Blade Height: 57mm

Weight: 222g

Cutting Edge Steel: 1.2519

Stainless: No

HRC: 65

Blade Construction: Mono Steel

Blade Finish: Kurouchi and Brushed

Grind: Convex

Handle Construction: Hidden Tang, Take Down

Handle Materials: Ash Masur, Buffalo Horn

Handedness: Ambidextrous

Saya Included: Yes

Shipping & Returns


We process orders 5 days a week (Monday - Friday) and ship from our shop in Berlin, Germany. We ship with FedEx, UPS and Deutsche Post.

We are happy to offer free international shipping on a variety of orders depending on location and order value. You can check to see where things sit for you here.


At Modern Cooking we want our customers to be inspired and delighted by the products they purchase through our shop.

However, we understand that you may need to return products occasionally. If you are not entirely happy, you can return your purchase in its original condition within 14 days for a refund. Please email if you wish to return any goods.

In the unlikely event that you receive faulty goods or your order is damaged in transit, please contact us for instructions on how to return the goods as in this case we will meet the cost of return postage, though only if this is arranged through our authorised carriers. Any claim for refund or exchange resulting from faulty goods or goods damaged in transit must be raised within 5 business days.

All Modern Cooking logistics partners provide insurance in case of damage, but the coverage is only valid if we are notified within 5 business days. Please make sure to inspect your order immediately upon receipt to ensure that there is no damage.

Once we have the goods back, we will issue a full refund or send replacements where possible, as you prefer.

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 one of the many premium reactive German and Swedish steels are susceptible to rust if not properly cared for. In this case we advise that you keep the knife dry between uses and when storing the knife for longer periods wiping the knife blade with Tsubaki oil or another food safe oil is a wise choice. This will not stop a patina forming on the blade, but it will stop rust. A patina can be a beautiful personal feature on your knife and helps to stop rust forming. So, dry your knife regularly between uses, store in a dry place and apply some Tsubaki oil from time to time when storing for long periods. 

A reference guide to steel types

Handle Care: If you have a knife with a non-stabilised wooden handle, you can apply Tsubaki oil or another food safe oil to your handle from time to time. Food safe wax can be applied to both stabilised and no-stabilised wooden handles. Never apply hot wax or oil as you risk warping or damaging the handle.