Hokiyama Bunka Aogami Super Kuro-uchi 170mm (6.7") - BLADE
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✔︎ No import fees & duties - worldwide |
- Description
- Specifications
- Knife Care
- Shipping
Hokiyama Bunka Aogami Super Kuro-uchi 170mm (6.7") is a great multi-purpose blade with a black Kuro-uchi protective patina and hammer dents. As the original Japanese multi-purpose knife, the bunka blade shape is suitable for preparing large quantities of vegetables, meat, and fish.
This blade is available without a handle. This is your chance to fit your own handle or order it separately, so you can put together a one-of-a-kind knife that is perfectly suited to your taste and needs. If you would like us to fit the chosen handle on the blade, please choose the option handle fitting service.
BLADE SHAPE:
Bunka is one of the most versatile and useful blade shapes in the modern kitchen. It has a wide profile for easy food transfer and tends to be fairly flat towards the heel, enabling easy and fast chopping on the cutting board. A pointed tip allows piercing and precise, delicate work. A slight curve between the tip and the midsection makes the belly great for rocking the blade back and forth when cutting. It can be used for cutting meat, fish, and vegetables.
STEEL:
The core of this knife is Hitachi's Super Blue Steel (Aogami Super), which is the very top quality of traditional Japanese steels.
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 blade’s core was laminated using the san-mai method to improve its structural integrity and subsequent ability to withstand impacts and prevent chipping. San-mai translates to “three layers” in Japanese, referring to a blade that is composed of a primary, inner layer of harder steel (hagane) and of two secondary, outer layers of softer steel (jigane) that protect the prior.
→ Read more on Blade Construction: Lamination.
BLADE FINISH:
The Kuro-uchi (black) patina on the upper part of the knife gives it a unique and rustic appearance. 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 traditional Japanese look. The knife bears visible impressions of the hand-forging process (round hammer dents on the blade), which gives it a beautiful finish and also prevents food from sticking to the blade.
HANDLE:
This knife is without a handle, so you can fit your own. Browse our selection of handles and create your own, custom-looking knife! If you would like that we fit the selected handle to the blade for you, select Handle fitting service when adding the blade to the cart.
BLACKSMITH:
Hokiyama Hamono is a leading smithy in Kochi Prefecture in Japan. They have recently celebrated their 100-year anniversary, founded in 1919. Hokiyama Hamono is known for their quality as they follow the tradition of hand-made blades that has been around for over 800 years. They retain the handiwork and traditional craftsmanship that is passed down from generation to generation, while striving for the ever-new knowledge and innovation.
Blade shape: Bunka
Steel type: Aogami Super
Blade construction: San-mai / Tsuchime, kuro-uchi
Hardness (HRC scale): 63
Overall length: 252mm (9.9")
Blade length: 170mm (6.7")
Blade height: 42mm (1.7")
Spine thickness: 2.4mm (0.09")
Weight: 85g (3 oz)
Tang length: /
Recommended handle size: /
Kanji on the blade:
Blacksmith: Hokiyama
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.
Knife handles 👇
![Japanese handle - Okinawa Reef [octagon]](http://sharpedgeshop.com/cdn/shop/files/Okinawa_Reef_2_360x.jpg?v=1725446892)
![Japanese handle - Tokyo Night [octagon]_2](http://sharpedgeshop.com/cdn/shop/products/TokyoNight_2_360x.jpg?v=1712749802)
![Japanese handle - Nikko Moss [octagon]](http://sharpedgeshop.com/cdn/shop/files/Nikko_Moss_480575411331-accessories_2_360x.jpg?v=1712750144)
![Japanese handle - Red Pakka [oval]](http://sharpedgeshop.com/cdn/shop/files/JapaneseHandle-RedPakka_oval_41057543956_41057542957_41057541958_360x.jpg?v=1712838472)
This blade can be paired 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.
![Handle fitting [service]_1](http://sharpedgeshop.com/cdn/shop/products/service_360x.png?v=1666343988)
Handle Fitting service
Add Handle Fitting service to your cart when you order a blade (knife without a handle) and a custom handle from us and want us to install the handle on the blade for you.
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.
Quiz
Still doubting which type of Japanese knife should best fit your needs?
We created a 5-steps quiz to help you find the perfect knife based on your cooking skills and the type of food you prepare.
