Hatsukokoro Hayabusa HAP40 Petty 120mm

$155.00 USD


Style: Petty
Blade Length: 120mm
Overall Length: 275mm
Weight: 82
Blade Height @ Heel: 28mm
Bevel: Double Bevel
Spine Thickness @ Heel: 1.7mm
Spine Thickness @ Mid: 1.7mm
Spine Thickness 1cm from tip: 0.5mm
Blade Material: HAP40 Core, Stainless Migaki Clad
HRC: 66
Handle: Octagon Ebony



Blade Type

The Petty knife, a quintessential tool in Japanese cuisine, is a smaller utility knife used for precise, delicate tasks. Often considered a smaller sibling to the chef's knife, it excels in hand-held tasks like peeling, trimming, and intricate cutting. Its versatility makes it an essential for detailed culinary work.

Steel Type

HAP40 is an extremely hard (often HRC65) powder semi-stainless steel by Hitachi Metals in Japan. It holds an edge for an extremely long time and will develop a patina with use. It has enough chromium content to ward off rust spots if left wet for short periods, but best to be kept dry after use. It can be tricky to sharpen without a coarse stone of around 500 grit to get the burr moving.

Recommended Maintenance

Store it in a dry environment using magnetic strips, knife rolls, or sayas. Avoid hitting hard or frozen objects and twisting the blade while cutting. These knives are not dishwasher safe. Clean with hot water and a soft cloth, and dry immediately after use to prevent rust spots on the high carbon steel. For more information please read the blog below.



Hatsukokoro is a brand comprised of knives from some of the best artisans in Japan. Think Yoshikane, Myojin, Yauji, and many more. The creative force behind the Hatsukokoro brand is clearly doing something right turning out outstanding quality and incredible designs with thick spine tapers, unique tsuchime and damascus patterns, with the use of cutting edge (no pun intended) materials. An instantly popular brand, and with very good reason.

Express Shipping

We dispatch daily and ship Express all over the world

Secured Payments

Afterpay, Paypal, Zipmoney & Secure card payment for peace of mind

24/7 Secured Payments

Not sure where to start? Get in touch and we'll be happy to help

Happy Customers

Over 30,000 orders shipped to happy customers since 2018

Learning Centre

Knife Care

This knife is made with a stainless steel and is easy going and low on maintenance. It has high chromium content, meaning it is generally considered safe to leave wet on the board for short periods of time. is still best practice to not leave this knife to air dry as it's stain-less not stain-none! Wipe down after washing the knife and store away from any sources of moisture. 

Customer Reviews

Based on 1 review
Mukunda KC

Good knife👍