Bunka Knife - 8 Inch San Mai Copper Damascus Chef Knife

Our San Mai Copper Damascus Bunka Chef Knife brings a Japanese Bunka profile to a Cu-Mai copper-clad blade, finished with a carbon fibre handle, a fitted leather sheath, and a custom wooden box.

The 8 inch blade carries the Bunka shape, known for its reverse tanto tip and flat cutting edge. Copper layers run through the cladding, so the pattern flows differently on every piece. Total length runs 13 to 14 inches.

Cooks comparing layered kitchen blades can browse our full range of copper Damascus chef knives.

What Comes With the Knife?

The package includes:

• 1 San Mai copper Damascus Bunka knife
• 1 custom leather sheath
• 1 custom wooden presentation box

What Are the Knife Specifications?

What Is a Bunka Knife Used For?

The Bunka pairs a reverse tanto tip with a mostly flat edge. The angular tip gives precise control for scoring, detail cuts, and working around bone or awkward shapes, while the flat edge suits push cutting rather than the rocking motion a Western chef knife favours.

Everyday uses include:

• Slicing vegetables
• Dicing onions
• Trimming meats
• Mincing herbs
• Precision tip work

Cooks who prefer a curved belly and a rocking chop may want a Gyuto or Western chef profile instead. Our selection of handmade chef knives covers both styles.

What Is San Mai Copper Damascus?

San Mai is a traditional three-layer construction where a hardened core steel is clad on both sides by softer outer layers. In Cu-Mai, copper runs through that cladding, so etching reveals bright copper against darker steel.

The copper does the visual work. The core steel carries the edge, which is why the knife sharpens and holds like a proper kitchen blade rather than a decorative one. Every billet moves differently in the forge, so no two patterns repeat.

For a wider view of how layered steels compare with single alloys, read our breakdown of Damascus vs D2 steel.

How Is the Handle Built?

The handle uses carbon fibre with copper foil pieces set inside, giving a lightweight grip with a sleek finish and enough texture to stay secure in hand. Copper placement varies piece to piece, so the handle pattern is as individual as the blade.

The build is semi-tang rather than full tang. Weight stays low and the knife feels nimble through long prep, though a full-tang build remains the stronger option for heavy work. Avoid twisting or prying with the blade.

Who Is the Knife For?

• Chefs who want a working blade with a distinctive pattern
• Collectors of San Mai and Cu-Mai construction
• Home cooks moving up to a premium Japanese profile
• Gift buyers who need something display-ready

Collectors weighing handmade pieces against established names can read our roundup of the best western knife brands for collectors.

How Should the Knife Be Cleaned and Stored?

Hand wash with mild soap and dry the blade right away. Never leave the knife soaking, and skip dishwashers, abrasive pads, and harsh cleaners, since all of them damage the etched pattern.

Cut on wood or high-density food-safe plastic. Glass, stone, and ceramic surfaces chip a fine Japanese edge.

For storage, wipe the blade with a light coat of food-safe oil and keep it in the wooden box. The leather sheath protects the blade during transport and gifting, but leather holds moisture, so avoid long-term storage inside it.

Sharpen on a whetstone when cutting performance drops.

Frequently Asked Questions

What is San Mai copper Damascus?
San Mai is a three-layer Japanese construction with a hard core steel between softer outer layers. In this blade, copper runs through the cladding, creating the copper pattern and lustre while the core steel handles the cutting.

Is the blade solid copper?
No. The blade is steel with copper worked into the layered cladding. Solid copper would be far too soft to hold an edge.

How sharp is the blade on arrival?
The knife ships sharp and ready for vegetables, meat, herbs, and fruit. The reverse tanto tip gives close control on detail work.

What is the handle made from?
Carbon fibre with copper foil pieces set inside, chosen for low weight, durability, and grip.

Is the knife full tang?
No. The build is semi-tang, which keeps the knife light and agile in the hand.

Does the knife include storage?
Yes. Every knife ships with a custom leather sheath and a wooden presentation box.

Does every blade look the same?
No. Copper movement during forging is never identical, so each blade carries its own pattern.

Is the knife suitable for professional kitchen use?
Yes. The Bunka profile is common in professional kitchens for its speed, control, and tip precision.

Can the knife be given as a gift?
Yes. The wooden box, copper Damascus blade, and carbon fibre handle make it a strong gift for chefs, collectors, and cooking enthusiasts.