Bunka 135mm OB Go Mai Micarta & Copper


Karol Karyś is a consistent innovator, unique designer, and extremely talented craftsman. Continuing with our Oblivion Blades collaboration, Karol has taken things in a new direction with this 135mm Bunka. The blade features a unique fluted “S” grind, giving the brutalist textures a pragmatic touch and adding purpose to the signature made by Karyś detail.

The blade features a nice subtle curve from heel to tip. The unique fluted “S” grind is very thin behind the razor-sharp edge. This fun little bunka would be great for light prep work and the perfect knife to set at the table with hard cheese, dried sausage, and cold drinks.

Completed with the classic made by Karyś facetted handle and textured copper bolster.

Product Specification

Blade Type: Bunka

Edge Length: 135mm

Spine Heel: 4.08mm

Spine Mid: 2.9mm

Spine Tip (20mm before): 1.65mm

Blade Height: 47.8mm

Weight: 166g

Cutting Edge Steel: 80CRV2

Stainless: No

HRC: 62

Blade Construction: 5 Layer (Go Mai)

Blade Finish: Acid Etched (Forced Patina), Brute de Forge, and Textured

Grind: S

Handle Construction: Hidden Tang

Handle Materials: Micarta & Copper

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.