Kurosaki Petty Senko R2 Turquoise 150mm (5.9")
- Knife Care
Kurosaki Petty Senko R2 Turquoise 150mm is a small Japanese kitchen knife from the hands of master blacksmith Yu Kurosaki. It's an example of usable art, a knife that would look just as good at an esteemed art exhibition as it does in the hands of an ambitious cooking enthusiast.
The striking mirror-polish blade is dotted with intricate hammer imprints that resemble a dazzling diamond pattern—hence the name Senko 千古; meaning eternity. This also refers to the blade's core, forged out of SG2 powder steel, that will stay sharp for seemingly forever.
Yu Kurosaki isn't only known for his exotic steel choices, though. Equally eye-catching is the lavish turquoise handle with ornate mosaic rivets, that, together with the curvy, sabre like blade shape give the knife a lavish look. In many cultures, the turquoise gemstone has been associated for thousands of years as a holy stone, a bringer of good fortune or a talisman.
May this gem of a knife bring you luck as well, remaining your loyal companion and staying by your side on your cooking journey for years to come.
This knife comes with a special Yu Kurosaki protective sleeve to preserve sharpness and maintain good looks.
Petty knives are basically smaller versions of Gyuto knives (Chef's knife). Petty knives are intended for all those smaller tasks where larger knives are deemed unwieldy. On and off the cutting board.
This one has a pronounced reverse-tanto tip, also known as a kiritsuke or K-tip. Besides giving the knife a distinct, badass appearance, it allows for precise cuts and intricate work.
SG2 steel is a powder steel, renowned for its hardness and subsequent edge retention—due to a high carbon (C) content of 1.5%. The steel is also high in chromium (Cr)—around 15%, which adds to corrosion resistance and Molybdenum (Mo) that improves the blade’s wear resistance. SG2 steel blades will be able to achieve a fine sharpness due to the fine microstructure of the steel and will keep it—without having to worry about maintenance and corrosion.
A high hardness of around 63 HRC means that the blade won’t be very tough, so 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.
It has a double bevel (symmetrical) blade.
An intricate tsuchime (hammered) pattern with shallow diamond-shaped imprints adorns the highly reflective blade.
Turquoise western (Yo) style handle with high-polish rivets, one of them having an intricate mosaic motif.
ABOUT THE BLACKSMITH:
Yu Kurosaki is a young, talented master blacksmith who lives in Takefu Knife Village, close to the city of Echizen. His knives are well known throughout Japan and also around the world for their beautiful, unique-looking design and superior quality. Hammer's dents on the blade are his signature finish, and just like with snowflakes, not a single dent is alike. Needless to say (but we will say it anyway), his knives don’t only look great but they’re also made of high-quality steel and have a razor sharp, long-lasting edge.
Before opening his own smithy, Kurosaki-san was the apprentice of Hiroshi Kato, a master blacksmith with more than 50 years of knife-making experience. Kato-san is one of the founders of Takefu Knife Village, where now more than 10 master blacksmiths make knives by hand and put them on display for visitors to admire and learn more about their craft. Kurosaki-san is the youngest blacksmith to be granted the title of Master Nokaji by Takefu Knife Village Association and is a senior teacher there.
☝️When you visit Japan, make sure to put the Takefu Knife Village to your itinerary!
Here's a short video of Kurosaki's workshop:
Blade shape: Petty
Steel type: SG2/R2
Blade construction: San-mai / V-edge / tsuchime
Hardness (HRC scale): 63
Overall length: 265mm (10.4")
Blade length: 150mm (5.9")
Blade height: 34mm (1.3")
Spine thickness: 2.1mm (0.08")
Weight: 130g (4.6 oz)
Handle length: 107mm (4.2")
Handle type / wood: Western (Yo) style / Turquoise
Kanji on the blade:
Blacksmith: Yu Kurosaki
Location of the smithy: ECHIZEN - TAKEFU KNIFE VILLAGE / Fukui 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.
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.
✔ Use a magnetic rack, knife blocks, or use 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.
- €10 - flat worldwide rate with DHL Express (express delivery, 2-5 business days).
- FREE - all orders over €300 (DHL Express).
- 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.
- Europe: 1-2 business days
- US & Canada: 2-4 business days
- Rest of the World: 3-5 business days
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.
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.
Still doubting which type of Japanese knife should best fit your needs? We created a quick, 5-steps quiz to help you find the perfect knife based on your cooking skills and the type of food you prepare.