The KS Series is Masamoto’s range of high-grade Shiro-ko #2 (White Steel No.2) Hon Kasumi Japanese traditional-style knife. When compared with the Kasumi knife-making process, the production of Hon Kasumi knife 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 KS 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 KS Series knife uses a blade core of Hitachi White Steel No.2 (HRc. 62-63), which is forge-welded with soft iron. White Steel No.2 is very pure and is capable of achieving a high hardness level without being overly brittle, so it can be used to create very sharp edges with good edge retention that are also easy to sharpen. It is perfect for professional users who like to keep their knives extra sharp.
Each knife is fitted with a traditional Japanese ‘D-shaped’ magnolia wood handle with a water buffalo horn ferrule / collar.
The Japanese word "Ko" means “small” or “short” in English, and the Ko-deba is a small Deba that is commonly used in coastal areas of Japan to fillet and butterfly small saltwater fish. The Ko-deba is useful knife for home cooks that prefer to clean and fillet the smaller sizes of fish, including small freshwater fishes such as trout.
Knife Model: Masamoto KS Series Ko Deba
Blade Material: White 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: No.
Ko Deba 105mm (4.1")
Total Length: 250mm
Blade Thickness: 2.9mm
Blade Width: 39mm
Total Weight: 80g
Ko Deba 120mm (4.7")
Total Length: 255mm
Blade Thickness: 5.4mm
Blade Width: 43mm
Total Weight: 130g
Ko Deba 135mm (5.3")
Total Length: 280mm
Blade Thickness: 6.2mm
Blade Width: 44mm
Total Weight: 170g
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.
- Please do not put the knife in the dishwasher machine for cleaning.
- Please do not leave the knife in water or wet condition for a long time.
- After using, please hand wash the blade, bolster and handle thoroughly, and wipe it clean and dry with soft clothes. Please apply Tsubaki oil on the blade and keep it in a dry place.
- This is an extremely sharp knife. Please use special cares in using and storing it.
- Unlike German made knives, Japanese knife blades are ground to thin cutting edge for sharper cutting and easier re-sharpening. Please protect the edge from hitting hard materials to avoid chipping or cracking.
- Please do not use it to cut bone or frozen foods, any hard shell foods such as lobster and crab.
- We recommend using Japanese whetstones to re-sharpen the knife, when it gets dull.