The Ko-Bunka is smaller than its larger brother the Bunka, this boning knife is perfect for cleaning, dressing and cutting all types of meaty goodness.
The Bunka combines the best of the Nakiri and Santoku shapes to create a visually interesting blade that performs excellently preparing both meat and vegetables.
The stainless, powdered R2 steel used in the blade construction is very thin which lends itself to taking a very sharp edge and is hard enough to handle daily use without needing to worry about its strength.
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Product details
- Blade Length: 136mm (Measurement of the cutting edge)
- Total Length: 268mm (Blade + Handle)
- Blade Thickness: 2mm (Measured level with heel)
- Blade Height: 40mm (Heel to spine)
- Total Weight: 81 grams
- Core Steel: R2
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This knife is made from a reactive carbon steel which is not stainless and therefore has some special care instructions and properties.
Read the carbon steel care guide - Cladding Steel: Stainless
- Hardness: 62-63 (HRC)
- Handle Style: Japanese
- Handle Material: Octgonal rosewood
- Left or Right handed: Either (Double Bevel)
Product SKU: 1656
Our aim is to measure and photograph all our products as accurately as possible but due to the handmade nature of many items, please be aware that there may be some variance in the measurements and that things such as blade and knife handle patterns can vary and presentation boxes may differ from those shown but we will always endeavour to provide the most accurate measurements, photos and descriptions of our products.
Some measurements such as HRC are provided by the manufacturer and should therefore be used as a guide.
Protection & care for this knife

This knife has a saya specifically designed for it which is the only one that fits otherwise we would recommend a petty sized blade guard.
Blacksmith Profile
Takayuki Shibata
Shibata san is one of the top knife sharpeners in Japan and his ranges are famed for the quality of sharpness and finish.