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Home | Hatsukokoro | Hatsukokoro Hayabusa 210mm Gyuto HAP40 Walnut Handle

Hatsukokoro Hayabusa 210mm Gyuto HAP40 Walnut Handle

$322.13
$322.13
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We are happy to have these high performance knives from Hayabusa in our lineup, great for busy professionals and home cooks who are looking for long edge life and can look after a moderately non stainless knife. 

These knives have a stainless cladding over a high alloy HAP 40 core with a walnut wa-style handle. The core can rust if left wet or with food on it so please dry off after use and washing, with use over time it will develop a dark patina. 

HAP 40 made by Hitachi's Yasugi Specialty Steels is a high alloy powder metal with exceptionally excellent edge holding and toughness. HAP 40 is not a stainless alloy but rusts slowly given it's rich alloy composition, sometimes referred to as 'semi-stainless'.


Brand: Hatsukokoro
Producing Area: Seki, Gifu, Japan
Profile: Gyuto
Size: 210mm
Steel Type: Semi Stainless
Steel: HAP40
Handle: Walnut & Buffalo Horn Ferrule Octagonal
Total Length: 354mm
Edge Length: 213mm
Handle to Tip Length: 221mm
Blade Height: 47mm
Thickness: 2.2mm
Handle Length: 133mm
Weight: 132g
Hand Orientation: Ambidextrous
HRC: 65-67

This is a semi-stainless steel knife. The blade has higher corrosion and stain resistance than carbon steel knives but will slowly oxidize with use over time. Hand wash and towel dry. Do not put it in the dishwasher. Do not air dry.



Twisting, scraping and heavy use as well as use on hard and very dense objects can lead to edge damage. Using a quality wooden cutting board will keep a sharper edge for longer. Cutting surface materials like glass, ceramic and bamboo will make the edge go dull quickly and should be avoided.

We recommend hand sharpening on whetstones. We have found that most Japanese knives perform best at a finer finish starting around 4000 grit. Avoid pull through sharpeners and non-water cooled mechanized sharpening. Ceramic honing rods are preferred.

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