Gyuto 270mm Full Mirror Polish Honyaki C105-W1 Integral Oosik & Ebony


A Gyuto 270mm forged in C105 or W1 steel, an amazingly thin and sharp blade with a high performance walkschliff grind and tapered spine. The hamon is an incredible subtle, hazy, wave pattern that streaks across the top of the blade and compliments the beautiful mirror polish perfectly. This is one of the finest honyaki blades we have had the privilege of seeing.

A perfect mirror, to create such a thing means hours of work just for this one detail. From a blackened piece of steel covered in forging scale the blade must be profiled, and ground clean, the bevels and walkschliff cutting geometry must be applied, then finally the artisan works by hand, sanding and polishing until every scratch is blended and the steel becomes the beautiful mirror you see here. This is just part of the work that has gone into creating this masterpiece from artisan blacksmith Jonas Johnsson aka Isasmedjan.

Extending back from the forged integral bolster is an incredible, extraordinary Oosik and ebony handle. The blue, green and yellow hues of the speckled material are a striking, textural pairing with the smooth as silk mirror blade and the luxurious dark ebony spacer that traverses the middle of the handle provides a beautiful piece of contrast.

This is a once in a year piece for Swedish artisan blacksmith Jonas Johnson, with hours of work invested in the forging and polishing of the blade, and incredibly rare and beautiful materials for the handle. A stunning center piece in any collection.

Product Specification

Blade Type: Gyuto

Edge Length: 270mm

Spine Heel: 3mm

Spine Mid: 1.44mm

Spine Tip (20mm before): 0.95mm

Blade Height: 53mm

Weight: 209g

Cutting Edge Steel: W1

Stainless: No

HRC: 64+

Blade Construction: Honyaki

Blade Finish: Mirror Polish

Grind: Walkschliff

Handle Construction: Hidden Tang

Handle Materials: Oosik, Ebony

Handedness: Ambidextrous

Saya Included: No

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.