Bunka Knife 210mm — Tricolour Multimetal Construction | Retro Architectural Expression

Bunka Knife 210mm — Tricolour Multimetal Construction | Retro Architectural Expressio

This 210 mm Bunka knife represents a more angular and assertive interpretation within the FireForge Retro Tricolour architectural line. While sharing the same multimetal foundation as the Chef model, the Bunka profile introduces a sharper, forward-oriented geometry designed for precision-focused preparation.

It is conceived as a visually expressive culinary instrument where blade architecture and form are equally central.

Engineering and Materials

The cutting core is manufactured from 12Cr18MoV stainless steel, heat-treated to approximately 60 ±2 HRC. This composition provides corrosion resistance, structural stability and controlled edge behaviour suitable for daily culinary use.

The core is clad in a 37-layer tricolour laminated structure composed of brass, purple copper and 316L stainless steel. These outer metals create a layered architectural surface while preserving the functional integrity of the stainless core.

Copper and brass layers may develop natural patina over time, contributing to evolving visual character without affecting cutting performance.

The edge geometry is finished at approximately 15° ±1 per side, balancing sharpness with durability.

Manufacturing Process

Multimetal lamination integrates stainless steel, copper and brass layers through controlled forging. The blade is heat-treated to stabilise grain structure and hardness before final refinement.

Surface finishing includes precision grinding, hand polishing and controlled etching to reveal the tricolour layered composition.

The process emphasises visual depth and structural cohesion rather than performance maximisation.

Functional Use

Optimised for:

• Vegetables

• Fine protein slicing

• Precision cutting tasks

The Bunka profile offers enhanced tip control and defined push-cut performance compared to a conventional Chef knife.

While fully functional, this model prioritises architectural expression and blade geometry as part of its identity.