The KA Series is Masamoto’s range of high-grade Ao-ko #2 (Blue Steel No.2) Hon Kasumi Japanese traditional-style knives. When compared with the Kasumi knife-making process, the production of Hon Kasumi knives requires several extra steps be carried out during the forging, quenching, sharpening and finishing stages of production and requires a higher level of craftsmanship. Unlike the KK Series, the KA Series is completely hand sharpened, polished and finished by especially skilled and experienced craftsmen, which results in extra edge sharpness and a more refined level of finish.
Masamoto KA Series knife uses a blade core of Hitachi Blue Steel No.2 (HRc. 62-63), which is forge-welded with soft iron. Blue No.2 steel is made by adding Chromium (0.2-0.5 %) and Tungsten / Wolfram (1.0-1.5 %) to a base of White steel No.2. This results in steel that has comparable edge sharpness to White steel No.2, but improved strength, toughness and edge retention, so it is a good choice for users who need a sharp knife throughout their working day. However, it can take a little longer to sharpen than White Steel No.2 blade.
Masamoto KA Series knife is fitted with a traditional Japanese ‘D-shaped’ magnolia wood handle with a water buffalo horn ferrule / collar and also includes a matching magnolia wood Saya (Sheath) for safekeeping.
The Japanese Deba, which is also called the Hon-deba (Literally, “true deba"), is traditionally used to clean and fillet whole fish, but it is also commonly used for breaking down and dressing poultry and other meat with small bones. The significant weight of the Deba is desirable because, with adequate care, the sturdy heel section of the knife can be used to cut or chop through the bones found in small and medium-sized fish and poultry.
Knife Model: Masamoto KA Series Deba
Blade Material: Blue Steel No.2
Rockwell Hardness (HRc): 62 to 63
Blade Grind and Edge Shape: Single Bevel Edge
Handle Material: D Shaped Magnolia Wooden Handle with Water Buffalo Horn Ferrule
Saya Included: Yes.
Deba 150mm (5.9")
Total Length: 295mm
Blade Thickness: 6.3mm
Blade Width: 50mm
Total Weight: 200g
Deba 165mm (6.4")
Total Length: 315mm
Blade Thickness: 6.8mm
Blade Width: 50mm
Total Weight: 230g
Total Length: 330mm
Blade Thickness: 7.2mm
Blade Width: 54mm
Total Weight: 300g
Total Length: 360mm
Blade Thickness: 8.2mm
Blade Width: 55mm
Total Weight: 420g
Deba 210mm (8.2")
Total Length: 380mm
Blade Thickness: 8.3mm
Blade Width: 61mm
Total Weight: 470g
|Deba 225mm (8.8")|
Japanese Traditional Style “Wa-Bocho” knives generally come with Single bevel edge for right handed use (the opposite side of blade is ground flat with slightly concaved shape). The reverse grinding left handed version is also available at 50% extra of regular price. (Sorry for much extra! Due to a small demand for the left handed version in Japan, it is costly to run a special small production from the beginning step). We try to keep the left handed versions in stock, but once sold out, it may take 30 to 45 days for delivery. Please contact us first for the availability at email.
We believe the quality and cutting performance of Japanese knives are the best in the world, and hope you enjoy the fine craftsmanship and their sharp edge of your new knife. With proper cares, every Japanese knife should be your special cooking partner for a long time.
This is the Carbon steel blade kitchen knife that can get rust and discolor easily, and requires extra care and attention to prevent rust.
The Masamoto KA Deba is a great knife. It already comes very sharply out of the box and is excellent for cutting poultry. A large chicken can be portioned as easily as the knife cuts through the bones as through butter. As usual, the service from JCK was very good, it is always a pleasure to buy here again. Absolute recommendation!
My first Japanese knife, new sensation using it, but very good the quality of steel is very different from German steel.
I must admit, that I select a very limited subset of my knife set to use as an exemplar set. These are knives that I study for many years in their factory condition. I have noticed that over time (sometimes several years), I learn something new from a knife that I have not used or sharpened (sometimes it's the profile, other times it's the finish). Over the years, I also come up with new methods to study the knife (magnification, photogrammetry, SEM). So, while I cannot comment on aspects of the knife that I normally can (edge retention, ease of sharpening etc): I can say that my respect for this knife is great enough that I will likely keep it in its original state for a minimum of five years.
This knife is really powerful with a strong spine. And the amazing wave decoration on the back is a bonus.
Everything was perfect with my order. It arrived on time, in perfect condition and I love all of the knives. They are all excellent quality and very sharp! Overall I am very pleased with my order and would recommend you to all my friends!