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8" Bunka Knife - Retro Series (PM8S) - Xinzuo Australia

8" Bunka Knife - Retro Series (PM8S)

4.73 Stars (74 reviews)

The 8" Bunka from the Retro series is a Japanese all-purpose knife built around a reverse-tanto K-tip and a flat-heavy edge for clean push cuts. The blade is 3-layer 10Cr15CoMoV composite Damascus clad in stonewashed SuS410, finished in a frosted black retro texture. At 60±2 HRC with a 15° per-side edge, it holds a fine point for detail work and stays sharp through everyday prep.

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8" Bunka Knife - Retro Series (PM8S)

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30-day returns
Regular Post $14.95 - 2-5 business days
Lifetime warranty
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Detail Icon 1

K-Tip Bunka

Precise Tip Work

Detail Icon 2

60±2 HRC

3-Layer Damascus

Detail Icon 3

Full Tang

Wood + Horn Handle

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DESCRIPTION

Reach for this when the task is slicing rather than rocking. The reverse-tanto tip punches through the heel end of a salmon fillet, a daikon, or a block of firm tofu without the tip snagging - then the long, nearly flat belly carries straight through in a clean push cut. It's a different cutting motion to your chef knife, and once you've used it for that style of work, you won't want to go back to the curve.

The Bunka Profile, Built for Push Cutting

A bunka is a Japanese all-purpose knife with a flat-to-slightly-curved belly and a reverse-tanto tip that angles upward sharply at the point. That geometry rewards a push cut more than a rock chop. Use it for shaving fennel paper-thin, slicing raw fish for a quick crudo, or breaking down a whole red cabbage into even strips without the tipped belly snagging on the board. The 8-inch length gives you enough reach to work through a whole chicken breast in two or three strokes instead of five.

3-Layer Steel in a Knife Built to Last

The blade is 3-layer 10Cr15CoMoV composite: a hard high-carbon core flanked by two outer layers of softer stainless for corrosion resistance. Vacuum heat-treated to 60-62 HRC, the core holds a fine edge through a full session of push-cutting without the brittleness you'd get from a single-steel hard blade. The octagonal Red Wood handle with genuine black buffalo horn collar gives you a reliable pinch grip whether you're using it light-handed for fish or with more force on a butternut.

Specifications

  • Blade Steel: 3-Layer 10Cr15CoMoV Composite Steel
  • Hardness: 60-62 HRC (Vacuum Heat Treated)
  • Blade Profile: 8-inch Bunka, reverse-tanto tip
  • Handle: Red Wood & Black Buffalo Horn (Octagonal), full tang
  • Use: Push-cutting vegetables, slicing raw fish and firm proteins, and any task where a flat-bellied blade with a sharp tip is faster than a rocking chef knife.
  • Series: Retro Series (PM8S)
  • Model: PM8S-10QFD

Complete Your Set

Pair it with the Retro 8.5" Chef Knife (PM8S-CS) for rock-chopping tasks where this flat profile runs short, and the Retro 7" Santoku (PM8S-RS) for lighter push-cut vegetable work when you don't need the full length.

READY TO GIFT

Yep. All our knives arrive in a beautiful, premium gift box that’s ready to impress. (Whether it's for a very lucky friend, or just for you.)

THE NERDY BITS
  • Blade profile: Bunka, reverse-tanto / K-tip
  • Blade length: 8.0 in
  • Blade material: 3 Layers 10Cr15CoMoV composite steel
  • Cladding: SuS410 stainless, Damascus-patterned outer layers
  • Hardness: 60±2 HRC
  • Heat treatment: vacuum heat treatment
  • Edge angle: 15° per side (30° inclusive)
  • Spine thickness: 2.4 mm
  • Net weight: 181 g
  • Handle: red wood + black buffalo horn
  • Tang: full tang
  • Finish: frosted black retro texture (stonewashing / sandblasting)
  • Care: hand wash only, not dishwasher safe
  • Origin: Yangjiang, Guangdong, China
  • Warranty: lifetime against manufacturing defects
The K-Tip All-Rounder

Retro Series · PM8S

The K-Tip All-Rounder

The Retro series is Xinzuo's workhorse take on the Japanese bunka. The reverse-tanto tip gives you a sharp, controllable point for scoring, detailing and fine slicing, while the flat edge profile drives straight push cuts through onions, herbs and proteins. One knife that handles most of the board.

See it in action

The K-Tip All-Rounder

Add to cart — $99.95

In stock. Ships from Australia. Hand-wash only.

Tip Control Meets Push-Cut Power

Why A Bunka

Tip Control Meets Push-Cut Power

The K-tip puts the point exactly where your finger expects it, so tip work feels deliberate rather than fiddly. The flat belly means more of the edge meets the board on every push cut, so you slice cleanly without the rocking a curved profile needs. Ground to 15° per side, the edge bites early and finishes thin.

  • K-tip reverse-tanto
  • 15° per side
  • Flat push-cut edge
  • 8" blade
3-Layer 10Cr15CoMoV Composite Damascus

The Steel

3-Layer 10Cr15CoMoV Composite Damascus

A 10Cr15CoMoV core is forged between two Damascus-patterned SuS410 outer layers, then vacuum heat treated to 60±2 HRC. The result is an edge that takes a fine apex and holds it, with stainless cladding for corrosion resistance. The spine measures 2.4mm, kept slim for a nimble, controlled feel in the hand.

Specification

The details.

TypeBunka Knife
Blade length203mm
Spine2.4mm
Weight202g
Steel10Cr15CoMoV
Cladding3-layer Damascus
Hardness60±2 HRC
Edge angle15° degrees per side (30 deg inclusive)
ConstructionFull Tang
HandleRed Wood + Black Buffalo Horn
Made inChina (Yangjiang, Guangdong)

Hand-wash only — not dishwasher safe.

Red Wood And Buffalo Horn

In The Hand

Red Wood And Buffalo Horn

The handle pairs red wood with a black buffalo horn bolster, fitted to a full-tang blade for balance and durability. At 181g the knife sits light and responsive, favouring the precise, tip-led cutting a bunka is built for. The frosted black retro finish is applied by stonewashing and sandblasting.

The difference

Why this knife

Retro Bunka (PM8S)

  • K-tip reverse-tanto for precise point work
  • 3-layer composite Damascus, 60±2 HRC
  • Flat edge tuned for push cuts
  • Red wood + buffalo horn, full tang
  • Frosted black retro finish

Generic All-Purpose Knife

  • Rounded tip, less control for detailing
  • Unstated steel and hardness
  • Curved profile needs rocking
  • Moulded or stamped handle
  • Plain machine finish

In the box

Everything it comes with.

  • 8" Bunka Knife - Retro Series (PM8S)
  • Gift box packaging

Arrives ready to gift.

Retro Series

Ready when you are.

Retro Series · PM8S

Add to cart — $99.95
  • 30-day returns
  • Regular Post $14.95 - 2-5 business days
  • Lifetime warranty

FAQs

What is a bunka knife used for?

It is a Japanese all-purpose knife. The K-tip handles precise detailing and slicing, while the flat edge drives clean push cuts through vegetables, herbs and proteins.

What does the K-tip do?

The reverse-tanto K-tip gives you a sharp, controllable point for scoring, fine slicing and tip-led work that a rounded tip can't match.

What steel is the Retro Bunka made from?

A 10Cr15CoMoV core clad in two Damascus-patterned SuS410 outer layers, forming a 3-layer composite Damascus blade, vacuum heat treated to 60±2 HRC.

What is the edge angle?

15 degrees per side, 30 degrees inclusive.

What is the handle made of?

Red wood paired with a black buffalo horn bolster on a full-tang blade.

Can I put it in the dishwasher?

No. Hand wash and dry it. The dishwasher voids the warranty and damages the edge and handle.

Is it covered by warranty?

Yes. A lifetime warranty covers manufacturing defects such as layer delamination. It excludes misuse, dropping and dishwasher damage.

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