Bunka Knife 150 mm Dellinger Diamond – 49 Layers ZDP-189 DLC

Bunka with a 150 mm blade is an agile, multipurpose kitchen knife that combines a wide blade, an easy-to-handle length and a distinctive K-tip. It is suitable for vegetables, herbs, fruit, fish and boneless meat, while its precise tip also makes delicate trimming and detailed work easier.

At the heart of the 49-layer Damascus blade is ZDP-189 powder steel, valued for its ability to achieve an exceptionally fine cutting edge and retain its cutting performance for a long time. Vacuum heat treatment followed by deep freezing helps make full use of the potential of this technically demanding steel.

The knife's distinctive character is emphasised by its dark DLC coating and Japanese Wa handle made from ebony wood. Its octagonal profile provides a secure sense of the knife's orientation in the hand, while the multilayer black-and-gold lacquered finish creates a unique decorative pattern and helps protect the wood surface.

The knife comes in an elegant acacia wood gift box, making it a valuable gift for a discerning cook, a lover of fine cooking or a collector of exceptional knives.

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A Compact Bunka with Exceptional Character

What Is a Bunka Knife?

Bunka is a multipurpose Japanese-style knife with uses similar to a Santoku. However, it generally features a more pronounced geometric tip known as a K-tip or reverse tanto.

The wider blade provides good support when cutting and makes it easy to transfer chopped ingredients from the cutting board. The relatively straight section of the cutting edge works well for downward cutting motions when preparing vegetables, while the sharp tip adds precision for detailed tasks.

The 150 mm length makes this model exceptionally agile. It is easy to handle on a smaller cutting board and is also appreciated by cooks who find conventional 180 to 210 mm knives too large.

What Can You Use This Knife For?

Distinctive K-tip

A characteristic feature of the Bunka knife is the angled upper profile of the blade, which forms a sharp K-tip. This shape provides greater precision when guiding the knife during detailed work and makes scoring, trimming or separating small sections of ingredients easier.

The K-tip is more delicate than the robust tip of a conventional European chef's knife. It offers excellent precision but requires careful handling. Do not use the knife for prying, opening packaging or twisting it inside hard ingredients.

49-Layer Damascus Blade with a ZDP-189 Core

The blade features a 49-layer Damascus construction, with a cutting core made from ZDP-189 powder steel at its centre. This central layer forms the actual cutting edge and determines its main cutting properties. The surrounding layers complete the construction and create the distinctive Damascus pattern.

ZDP-189 is an advanced powder steel with a high carbon and chromium content. Its main advantage is the ability to form a very fine cutting edge with long-lasting performance. However, the full potential of this steel can only be achieved through proper heat treatment, precise grinding and careful use.

Vacuum Heat Treatment and Deep Freezing

The blade undergoes vacuum heat treatment. A controlled environment with limited oxygen exposure helps protect the steel surface during the process and allows more precise control over the individual heating and cooling stages.

This is followed by a process known as deep freeze. This additional low-temperature treatment helps stabilise the resulting steel structure after hardening and supports consistent blade properties.

The combination of ZDP-189 powder steel, vacuum heat treatment and deep freezing provides a quality foundation for long-lasting edge retention. The knife's final performance is also influenced by blade geometry, sharpening method and correct cutting technique.

DLC – A Dark, Durable Coating

The blade features a DLC – Diamond-Like Carbon coating. This is a thin carbon-based surface layer characterised by high hardness, low friction and increased resistance to normal surface wear.

DLC gives the knife its characteristic dark appearance and accentuates the textured pattern of the Damascus steel. It also creates a striking contrast between the blade and the black-and-gold handle. The coating helps protect the coated part of the blade but does not replace regular care.

Octagonal Japanese Wa Handle

The handle is designed in the traditional Japanese Wa style. This term describes a lightweight fitted handle that contributes to the knife's agile character and allows the cook to feel the blade's movement clearly.

The eight-sided, or octagonal, cross-section creates flat surfaces and clearly defined edges that help position the fingers. This reduces the tendency of the handle to rotate in the palm during use and allows natural control over the cutting edge's orientation.

The symmetrical octagonal profile is suitable for both right-handed and left-handed users. Its shape supports both a traditional handle grip and a chef's pinch grip near the heel of the blade.

Ebony Wood with Black-and-Gold Lacquered Decoration

The handle is made from dark ebony wood. Part of the handle features a special multilayer Japanese-style lacquered finish in black-and-gold to copper tones, creating an irregular pattern that varies slightly from one piece to another.

The decorative finish blends seamlessly into the deep black of the ebony, visually connecting the handle with the blade's dark DLC coating. The lacquered layer also helps limit direct exposure of the wood surface to moisture and dirt.

The design draws inspiration from Urushi – the traditional Japanese art of lacquering, whose history stretches back thousands of years. Layered lacquer, deep black shades and decorative gold tones recall craft techniques such as maki-e. This knife features a lacquered finish inspired by Urushi aesthetics; the manufacturer has not confirmed the use of genuine natural Urushi lacquer. Learn more about the history, production and beauty of this technique in our article Urushi: Japanese Lacquer Where Nature, Time and Craftsmanship Meet.

Technical Specifications

Acacia Wood Gift Box

The knife comes in an elegant acacia wood box. The natural grain of the acacia complements the dark blade and decorative ebony handle, highlighting the exclusive character of the entire design.

Thanks to its wooden packaging, the knife is ready to give as a birthday, anniversary, Christmas or other special-occasion gift. It is a suitable choice for lovers of quality cooking, experienced chefs and collectors of exceptional kitchen knives.

Proper Care for the Blade and Lacquered Handle

• Wash the knife by hand only, using a soft sponge and dishwashing liquid.
• Dry the blade and handle thoroughly immediately after washing.
• Do not put the knife in the dishwasher or leave it in the sink.
• Do not soak the lacquered handle in water for extended periods.
• Do not use steel wool or abrasive products on the blade or handle.
• Use a wooden or high-quality synthetic cutting board.
• Avoid glass, ceramic, stone and metal work surfaces.
• Use quality water stones or professional sharpening services.

Frequently Asked Questions