


Masakage Koishi Stainless Clad Aogami Super Ko Bunka
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Eligible US purchases include 180-day returns and a free prepaid return label.
Free US shipping over $99. Orders are normally fulfilled within 2 business days; UPS Ground transit is typically 1–5 business days. Custom work may add 1–2 business days.
Every order is fully insured. If a package is lost or damaged, contact us and we will handle the claim.
The Masakage Koishi Ko-Bunka 130 mm packs full-sized performance into a palm-friendly blade. Forged by Echizen master Yoshimi Kato from ultra-hard Aogami Super, then hand-sharpened by Takayuki Shibata, it pairs a pebble-textured tsuchime hammer pattern with a protective kurouchi layer over stainless cladding. The result looks like river stones caught in midnight fog—yet cuts with laser-like ease. At 130 mm, the Ko-Bunka keeps knuckle clearance while feeling as nimble as a petty, making it a do-everything companion for quick veg prep, herb chiffonades, or on-the-fly protein trimming.
Common Questions
Q: Is 130 mm long enough for daily meal prep?
A: Absolutely. The tall profile and flat edge let you chop cucumbers, mince garlic, or portion chicken breasts without wanting more length. Only large roasts or melons may need a longer blade.
Q: Does the Aogami Super core rust easily?
A: The core is reactive, but the stainless cladding covers most of the blade. Wash, dry, and store promptly; a pleasant grey patina will form on the edge over time.
Q: How often will I need to sharpen it?
A: With its HRC 63–64 hardness, the edge lasts many weeks in home use. A quick touch-up on a 3 k stone or strop restores “shave-sharp” in minutes.
Specifications
- Core Steel: Aogami Super carbon steel
- Cladding Type: Stainless, kurouchi tsuchime finish
- Blade Length: 130 mm
- Overall Length: 260 mm
- Spine Thickness (Heel): 2.2 mm
- Spine Thickness (Mid): 1.8 mm
- Blade Height: 31.9 mm
- Weight: 68 g
- Handle Material: Octagonal cherry wood with black pakkawood ferrule
- Hardness (HRC): 63–64
Shipping, returns and order protection
US shipping: Free on orders over $99. Orders are normally fulfilled within 2 business days, and UPS Ground transit is typically 1–5 business days after fulfillment. Custom handle installation or sharpening may add 1–2 business days.
Returns: Eligible purchases may be returned within 180 days with a free prepaid return label. Knives sharpened by Tokushu Knife or fitted with a custom handle remain eligible if they are otherwise new, unused, undamaged, and returned in their original packaging with all included components. The same refund terms apply.
Order protection: Every order is insured. If a package is lost or damaged, contact us at Tony@TokushuKnife.com and we will handle the claim.
Outside the US: Supported international orders from TokushuKnife.com typically ship via FedEx Delivered Duty Paid (DDP). Tokushu Knife pays all applicable import duties and taxes on the customer's behalf. Customers are not responsible for paying duties or taxes. Available destinations, shipping charges and delivery estimates are shown at checkout. Customers may also shop at TokushuKnife.eu for regional inventory and options.
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Steel, Construction and Care
Our catalog includes stainless, semi-stainless and carbon steels selected for edge performance and durability. Carbon steels may develop a patina, while stainless steels are designed to resist discoloration. Follow the care guidance on each product page, hand wash only and dry the knife promptly after use.



