Masamoto KS Honkasumi White Steel No.2 Usuba Vegetable Knife - 180mm (7")
Masterwork of Traditional Honkasumi Forging
The Masamoto KS Series represents the absolute pinnacle of traditional Japanese vegetable knives. Expertly hand-forged (Honkasumi) by master artisans, each Usuba undergoes additional rigorous steps in forging, quenching, and manual polishing compared to standard Kasumi knives. This relentless dedication results in a stunningly refined finish and legendary sharpness trusted by Michelin-starred chefs.
Pure White Steel No.2 Core (HRC 62-63)
Forged from premium Hitachi White Steel No.2 (Shirogami #2) clad with soft iron, this Usuba achieves an extraordinary hardness of HRC 62 to 63. Celebrated for its extreme purity, this high-carbon steel delivers an aggressive cutting bite and superior edge retention, while remaining remarkably easy to resharpen on whetstones.
Razor-Sharp Single Bevel for Precision Cutting
Featuring a traditional Single Bevel Edge, this 180mm Usuba features a perfectly flat profile designed specifically for precision vegetable prep. It is the ultimate tool for traditional Japanese techniques like Katsuramuki (rotary paper-thin peeling), precise dicing, and julienning. The surgical precision of the edge prevents cell damage to vegetables, locking in their natural juices, crunch, and vibrant colors.
Magnolia Wood Handle with Natural Horn Ferrule
True to centuries-old traditions, this knife is balanced with an ergonomic, lightweight D-shaped Japanese magnolia wood handle. It is beautifully crowned with a genuine water buffalo horn ferrule (bolster), providing a secure, slip-resistant grip for extended kitchen shifts.
Specifications
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Knife Model: Masamoto KS Wa Usuba (Vegetable Knife)
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Blade Material: Hitachi White Steel No.2 (High Carbon Steel)
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Hardness: HRC 62-63
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Edge Style: Single Bevel Edge (Right-Handed)
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Handle Material: D-shaped Magnolia Wood with Water Buffalo Horn Bolster
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Dimensions: Blade 180mm (7") | Thickness 4mm | Width 44mm | Weight 200g
- Maintenance: Hand Wash Only (Wipe completely dry immediately after use to prevent rust. Saya not included).
United States: Import duties and taxes are calculated and collected at checkout. Orders are shipped on a Delivered Duty Paid (DDP) basis, so no additional customs charges are due upon delivery.
All Other Countries: Orders are shipped on a Delivered Duty Unpaid (DDU) basis. Import duties, taxes, VAT/GST, and customs clearance fees (if applicable) are the responsibility of the customer and may be collected by local customs or the delivery carrier upon arrival.
For more information, please refer to our Shipping Policy.
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