Tsunehisa Petty Kuro-uchi Rosewood-Beechwood 140mm (5.5")_1
Tsunehisa Petty Kuro-uchi Rosewood-Beechwood 140mm (5.5")_2
Tsunehisa Petty Kuro-uchi Rosewood-Beechwood 140mm (5.5")_3
Tsunehisa Petty Kuro-uchi Rosewood-Beechwood 140mm (5.5")_1
Tsunehisa Petty Kuro-uchi Rosewood-Beechwood 140mm (5.5")_2
Tsunehisa Petty Kuro-uchi Rosewood-Beechwood 140mm (5.5")_3

Tsunehisa

Tsunehisa Petty Kuro-uchi 140mm (5.5") [Rosewood-Beechwood]

150,00€

Only 1 left in stock

🚩 The blade develops patina, but improper use can also lead to rust formation.

☝️ We assemble custom knives after an order has been placed. Assembly takes 2 business days which will affect shipping date, please plan accordingly.

✔︎ No import fees & duties - worldwide
✔︎ All taxes included
✔︎ Express worldwide shipping
✔︎ 30-day return policy

Tsunehisa Petty Kuro-uchi Rosewood-Beechwood 140mm is basically a smaller version of a gyuto knife (Chef's knife). Petty knives are intended for all those smaller tasks where larger knives are deemed unwieldy, both on and off the cutting board. A must-have knife in every kitchen, it can be used for peeling, mincing, paring and decorating food.

The Tsunehisa line of knives with kuro-uchi finish and hammer stampings are san-mai laminated and made from Hitachi's Aogami Super Steel, which ranks among the very best of high-grade Japanese steels. The core is protected by stainless outer layers for anti-rust properties and easy maintenance. We have added a traditional Japanese Wa rosewood handle with a beech wood ferrule. The handle is oval and thus suitable for working in both the right and left hand.

STEEL:
The core of this knife is Hitachi's Super Blue Steel (Aogami Super), which is the very top quality of traditional Japanese steels. The Kuro-uchi (black) patina on the upper part of the knife gives it a unique and rustic appearance. This knife was heat-treated to around 63 HRC. It is a very hard steel, meaning that it will retain a super-fine sharpness for a long time. In addition, due to the high carbon content (1.4-1.5%), the knife is very easy to sharpen. Among the high carbon steels, Aogami Super is also the least sensitive to rust. It also contains 0.4% vanadium as an admixture for micronized metal grains, which gives the steel more toughness. Aogami Super is rated as the most advanced carbon steel. The outer layers are of softer, stainless steel, giving the knife extra rust protection.

LAMINATION:
The core layer consisting of Aogami Super steel was sandwiched between two layers of softer steel. This technique is called san-mai and is used to protect the hard (but delicate) core from outside factors and physical impacts, which could lead to breakage.

The outer layers are of softer, stainless steel, giving the knife extra rust protection.

GEOMETRY:
It has a double bevel (symmetrical) blade.

BLADE FINISH:
Kuro-uchi finish, the unprocessed (black) part on the top side of the blade has already developed a dark patina, which protects the blade and gives it a unique and rustic appearance. The blade was treated with hammer blows, resulting in a textured tsuchime look, which gives it a beautiful finish and also prevents food from sticking to the blade.

HANDLE:
The handle (traditional Japanese Wa) is oval and smooth, with no discernible transition between the rosewood and beech wood. It’s suitable for both left- and right-handed users.

BLACKSMITH:
Tsunehisa knives are a brand that combines a variety of high-quality knives from various knife centers of Japan such as Tosa, Seki, and Sakai. Their philosophy is that each region has its own steel and different manufacturing processes. For example, Tosa is best known for its Ginsanko and Aus-8 steels, Seki is famous for making excellent blades from the V-Gold group of steels, and Sakai for its single beveled Honyaki knives.

Blade shape: Petty

Steel type: Aogami Super

Blade construction: San-mai / V-edge / kasumi, kuro-uchi, tsuchime

Hardness (HRC scale): 63

Overall length: 280mm (11.0")

Blade length: 150mm (5.9")

Blade height: 30mm (1.2")

Spine thickness: 2.0mm (0.1")

Weight: 65g (2.3 oz)

Handle length: 114mm (4.5")

Handle type / wood: Japanese / Rosewood, Beechwood

Kanji on the blade: 恒久 "Tsunehisa [eternal or permanent]"

Blacksmith: Tsunehisa

Location of the smithy: TOSA / Kōchi Prefecture / Japan

☝️ Japanese kitchen knives in our store are handmade from natural materials. Slight variations in color, texture, weight and other dimensions are possible. We try to give a good photographic representation of our products, however computer screen resolution and colors do vary, so products might not look exactly as they are seen on screen.

☝️ THIS KNIFE MAY DEVELOP PATINA

Knives made of carbon steels can, due to their low chromium (Cr) content, discolor and develop patina. The knife is the most sensitive when it is still new and a patina had not developed yet, but later, patina will protect the blade. These types of knives require a touch more care:

✔ Wipe it regularly with a clean and dry cloth (you can also do this during use).
✔ After use, rinse it with lukewarm water and wipe it dry.
✔ Coat it regularly with knife maintenance oil or plain refined sunflower oil.
✔ Store the knife by wrapping it in paper which will absorb moisture and protect the blade.

A patina is a thin layer that forms on the surface of oxidized steel and protects it from further oxidation. The patina should not be confused with rust. Patina protects the blade, while rust causes corrosion and deterioration of material, so it should be removed (see Rust erasers).

→ For in-depth information about patina, read our dedicated post on patina.

GENERAL KNIFE CARE TIPS:

Blade wear depends on the quality of steel, usage and maintenance of the blade. Japanese knives are made of high-quality steels. Follow these tips to keep your Japanese knife in top-notch shape:

✔ Use a wooden, plastic or rubber cutting board.
✔ After use, wash the knives and wipe them dry.
✔ For storage, use a knife holder or a protective knife sheath (saya).
✔ A good cutting technique is your best bet to prolong sharpness.
✔ Use sharpening stones to sharpen the knife.

❗️Don’t leave the knife in the sink. Wash it by hand.
❗️Don’t wash the knife in the dishwasher.
❗️Don’t use the knife on glass, ceramics, marble or steel surfaces.
❗️Don’t scrape the food off the cutting board with the edge of the blade. Use the spine of the knife instead.
❗️Knife is a tool intended for specific use - cutting food. It is not a can opener, screwdriver, trowel, wire cutter, hammer etc.

→ For more details, read our guide
on
Maintenance of Kitchen Knives.

🤙 Contact us if you need some help. We reply within 1 business day.

SHIPPING RATES:
- €10
- flat worldwide rate with DHL Express (express delivery, 2-5 business days).
- FREE - all orders over €300 (DHL Express).

EXCEPTIONS:
- United Kingdom
- shipping to UK costs €15. All orders are shipped with UPS Express (2-3 business days). Free shipping on orders over €300.
- Russia (currently not available) - shipping to Russia costs €40. All orders are shipped with EMS postal service.

DUTIES AND IMPORT TAXES:
We ship all orders DDP (duties & taxes paid). This means you will not be charged for any import fees and taxes (including VAT). All our prices are final. The price you see at checkout is the final price, no hidden costs.

DELIVERY TIME:
- Europe:
1-2 business days
- US & Canada: 2-4 business days
- Rest of the World: 3-5 business days

RETURNS:
Our return policy lasts 30 days. If more than 30 days have gone by since the day you received your order, unfortunately we can’t offer you a refund or exchange.

→ Read our SHIPPING & RETURNS policy for more info. We strive to solve any issues fast and with as little hassle for you. If you have some additional questions, please contact us.

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We paired this blade with our traditional custom-made maple burl handles

select your favorite

→ NIKKO MOSS remind us of the ancient moss covering the stone walls of the old temples of Nikko. It is not unlike holding a soft piece of velvet in your hand.⁠

→ TOTTORI SAND takes us on a walk across the Tottori dunes of western Japan⁠. A sandy brown color is inspired by the infinitely swirly sand dunes.

→ TOKYO NIGHT reminds us of the flashing lights of Tokyo’s Harajuku.⁠ The color of these handles varies from light to dark grey, with soft or deep hues of red and swirls of cream.

→ OKINAWA REEF transports you to the clear waters of Okinawa island. ⁠A soothing, emerald green color. It feels like immersing your hand in shimmering coastal waters during summer.

→ KYOTO SUNSET warms us with the glow of sunset over Kyoto. It feels like holding something smooth and warm in your hand – a glow in the sky at sunset or a burst of bright autumn color.

If you like a particular color hue, please contact us before placing an order.

Each knife comes with:

✔️ Instructions and knife care leaflet.
✔️ A preventive Band-Aid – the knives are very sharp! 😉
✔️ Original box from the blacksmith, which we wrap in an old Japanese newspaper sheet – so every knife is ready to be passed on as a gift as soon as it hits your doorstep!
✔️ We also offer a special gift wrapping option with the traditional Japanese washi paper.

Express Worldwide shipping

10€ flat rate with DHL Express.
Free on orders over 300€.

No Duties & Fees

We cover any import fees, worldwide.
All prices are final, tax included.

Easy Returns

Something not OK? You have 30 days to return it, no questions asked.

Attentive support

Get in touch, we usually respond within a few hours.

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Quiz

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