Hayabusaย Petty HAP-40 Damascus 150mmย is a small Japanese kitchen knife that will come in handy when a larger chef’s knife is too unwieldy for the task. Itโs a nonconformist piece that just screams futurism. Featuring a classic western style handle and a brazen look, itโs quite a unique knife. The wavy damascus curves on the blade are sharp and steep, reminiscent of high-frequency waves and synchronous with up-and-down chopping motions.
Made from HAP-40 steel, which is one of the most technologically advanced steels renowned for its extreme hardness, excellent sharpness and edge retention it provides to the knives. If youโre not a fan of sharpening your knives, this one is for you, as you really wonโt have to do it often.
| Fun fact: Hayabusaย petty shares its name with the peregrine falcon (ใใคใใต), the fastest member of the animal kingdom. This knife may not reach speeds upwards of 350 km/h, but chopping with it will feel just as fast. |
BLADE SHAPE:
Petty knives are intended for all those smaller tasks where larger knives are deemed unwieldy. On and off the cutting board. A must-have knife in every kitchen, it can be used for peeling, mincing, paring and decorating food.
STEEL:
This knifeโs hard core is made of a somewhat exotic and currently one of the most mysterious and attractive steels produced in Japan (at least as far as kitchen knives are concerned): Hitachiโs HAP-40 steel that fits into the category of modern and technologically advanced steels. HAP-40 is fine-grained enough to sharpen very well, and knives from this steel keep their sharpness 3-5 times longer than traditional knives. An interesting fact is that, considering it is a powder steel, it has an extremely small content of chromium (around 4%) and can react as a high-carbon steel in specific circumstances.
LAMINATION:
The core layer consisting of the hard HAP-40 steel was sandwiched between two sheets of softer damascus pattern 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.
GEOMETRY:
It has a double bevel (symmetrical) blade.
BLADE FINISH:
The blade has a unique damascus finish with sharp and steep curves that give the knife a futuristic appearance. The clad line is interesting as well, with consistent curves that arenโt frequently seen on Japanese knives.
HANDLE:
Classic western (Yo) style handle made from black micarta.









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