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Masamoto Sohonten  |  SKU: MASA_KS3121KT_KGY210_BLK

Masamoto Sohonten KS K-tip Gyuto 210 mm KS3121KT with Saya

Regular price $17,689.00

IMPORTANT: Carbon steel knives can rust or patina quickly if not cared for properly. They require regular cleaning, drying, and oiling. If you are unfamiliar with carbon steel maintenance, we recommend choosing a stainless steel option instead.

Availability

  • St Peters
    2 Bishop St Unit 2 St Peters NSW 2044
  • Crows Nest
    107 West St, Crows Nest NSW 2065
    Pickup only
Detailed Specifications
Line Masamoto KS Series
Profile Gyuto / Chefs Knife
Bevel Type Double Bevel
Weight 142 g | 5.0 oz
Edge Length 217 mm | 8 35/64″
Heel Height 45 mm | 1 49/64″
Width @ Heel 2.2 mm | 3/32″
Width @ Mid 2.2 mm | 3/32″
Width @ 1cm from Tip 1.0 mm | 3/64″
Steel White 2 / Shirogami #2 | Carbon
Blade Construction Monosteel
Hardness (HRC) 60 - 64
Surface Finish Migaki
Handle D Shaped Ho Wood Black Ferrule
Region Tokyo
Best for
  • Pro chefs
  • Collectors
  • Free shipping for knives over AU$200 Australia wide.
  • World-wide shipping via DHL Express, 3 to 5 days.


The KS Series by Masamoto Sohonten is a premium line of traditional Japanese knives, highly regarded by professional chefs and knife enthusiasts. Crafted from Shirogami #2 (White Steel No.2), these knives offer exceptional sharpness, edge retention, and ease of sharpening. Each blade is meticulously hand-forged and honed, reflecting Masamoto’s 150+ years of craftsmanship. The KS Series features a wa-gyuto (Japanese-style chef's knife) with a minimalistic, elegant design, a lightweight feel, and a well-balanced construction. Renowned for its razor-sharp edge and superior cutting performance, the KS Series embodies the pinnacle of Japanese knife-making artistry and tradition.

Pros Cons
  • Excellent performance
  • Thin behind the edge
  • Excellent fit and finish
  • High budget
  • Prone to rust
Care Instruction
  1. Don't cut hard things! Japanese knives are brittle so bone hacking is a NO NO!
  2. Wash with neutral detergent after use, and wipe dry;
  3. Please don't wash knife with dishwasher, it will damage the wood handle;
  4. Be careful not to leave the knife close to a heat source for a long time;
  5. It is a lot more dangerous to cut with a blunt knife than a sharp knife!
  6. It is best to sharpen a Japanese knife regularly on a waterstone.
  7. Oil the (carbon) knife if storing for an extended period of time to prevent rust.

Masamoto Sohonten

The Crowned King of Kanto Region

Masamoto Sohonten, the undisputed king of Japanese kitchen knives, has arrived at Knives and Stones. Started by Minosuke Matsuzawa in 1866, succeed by Kichizo Hirano in 1891 and registered its trademark in 1903, Masamoto Sohonten is now under the management of the 6th generation Masamoto: Masahiro Hirano. With more than 150 years of history, Masamoto Sohonten is recognised by almost every Japanese chef as the best kitchen knife brand in Japan, and it is often considered as the go-to tool for professionals.

“The hallmark of professionalism in single bevel knives, excellent in quality and consistency and once the dominating knife brand in the entire Kanto region.”

Est. 1866 | 慶応2年
Known for Excellently built traditional single bevel knives and KS series Gyuto
Website masamoto-sohonten.co.jp Read more about Masamoto Sohonten
Masamoto Sohonten — Tokyo
Profile: Gyuto
Profile

Gyuto

Chefs Knife

A Japanese chef's knife is known as a gyuto (牛刀 ぎゅうとう) gyūtō), literally meaning 'beef knife'. Its blade resembles a flatter version of a French chef's knife. Japanese cutlery is known for sharpness due to its acute blade geometry, and the hardness of the steel used, sometimes exceeding 60 HRC on the Rockwell Scale A typical western chef's knife may be sharpened to an edge angle of 20-22°, while a Japanese gyuto generally has a sharper edge angle of 15-18° (or even lower), which requires a harder, more brittle grade of steel. In recent years Japanese gyuto have gained in popularity with western chefs.

A modern chef's knife is a multi-purpose knife designed to perform well at many differing kitchen tasks, rather than excelling at any one in particular. It can be used for mincing, slicing, and chopping vegetables, slicing meat, and disjointing large cuts.
Composition

White 2 / Shirogami #2 Element Composition

Compare with
    White 2 / Shirogami #2
    1.05% 0.8% 0.5% 0.3% 0
    C Carbon 1.05%
    Primary hardening element. Raises hardness and wear resistance — but too much increases brittleness and corrosion susceptibility. As a reference: German 1.4112 (~0.5%) sits at the low end; VG-10 (~1.0%) is a common mid-range; SG2 (1.25–1.45%) and ZDP-189 (~3.0%) represent high and extreme ends respectively.
    C
    1.05%
    Mn Manganese 0.2%
    Aids hardenability and strength. Acts as a deoxidiser during smelting. Excess can reduce toughness.
    Mn
    0.2%
    Si Silicon 0.1%
    Strengthens the steel matrix and acts as a deoxidiser. Improves hardness and resistance to oxidation.
    Si
    0.1%
    P Phosphorus 0.025%
    Impurity from the smelting process. Even small amounts cause brittleness — steelmakers keep this as low as possible.
    P
    0.025%
    S Sulfur 0.004%
    Impurity that reduces toughness and promotes brittleness. Intentionally added only in free-machining steels.
    S
    0.004%
    C — Carbon Mn — Manganese Si — Silicon P — Phosphorus S — Sulfur
    Hardness 60–64 HRC
    555759616365+
    Steel
    White 2 / Shirogami #2
    Category
    Carbon
    Manufacturer
    Hitachi Special Steel, Japan 🇯🇵
    Hardness
    60–64 HRC
    Steel

    White 2 / Shirogami #2

    • Manufacturer
      • Hitachi Special Steel, Japan
    • Nature Carbon
    • Hardness60–64 HRC
    White Steel No.2, also known as Shirogami #2 or White Paper #2, is long regarded as the go-to choice for crafting high-grade Japanese kitchen knives. This steel is celebrated for its capacity to be fashioned into knives that exhibit a sharp cutting edge, moderate tenacity, and long-lasting sharpness, alongside being notably easy to sharpen. While it possesses a slightly lower carbon content (C: 1%) compared to White Steel No.1 (C: 1.3%), it still requires a high level of craftsmanship to manipulate effectively. The expertise of a skilled blacksmith is crucial in transforming this material into a premium quality kitchen knife. Despite its excellent qualities, White Steel No.2 is known to be very reactive; hence, knives made from this steel demand meticulous care, including immediate wiping and drying after use, to prevent corrosion.

    Sanjo and Sakai are known to widely utilise Shirogami #2 in their mainstream kitchen knives.
    Construction: Monosteel
    Construction

    Monosteel

    A "monosteel" construction in the context of Japanese kitchen knives refers to knives that are made from a single type of steel. Unlike traditional Japanese knives that might use a layered steel construction (like "san mai," which sandwiches a hard core steel between softer steel layers), monosteel knives are crafted from a single piece of steel throughout the blade. This type of construction can offer a balance of durability, ease of sharpening, and maintenance.

    Monosteel knives are appreciated for their uniformity in material properties across the blade, providing a consistent cutting experience. This also means the characteristics of the steel will be applied to the whole blade, if a monosteel blade is made of carbon steel, the entire surface of the blade will require maintenance to prevent rust and discolouration. This too, applies to the hardness, an uniformly hardened blade can be difficult to manufacture, and can be quite difficult for uers to perform thinning.

    It should be noted that monosteel knives are usually not forged, as the forged knives, along with differential heat treatment line is called Honyaki.

    Finish: Migaki
    Finish

    Migaki

    "Migaki" means "polished" or "shined" in Japanese, The term "Migaki finish" in the context of Japanese kitchen knives indeed does not exclusively refer to a mirror polish but encompasses a broader range of polished finishes that can vary from semi-gloss to a more refined, subtle sheen, rather than a highly reflective surface. The primary goal of a Migaki finish is to enhance the knife's functionality and aesthetic appeal, focusing on a smooth finish that improves resistance to corrosion and minimizes drag during cutting, rather than achieving a purely mirror-like appearance.

    Handle
    Handle

    Handle Specs

    • Profile D Shape WA
    • Material
      • Ho Wood
      • Black Buffalo Horn

    A classic handle that Masamoto Sohonten and many Tokyo knifemakers loves to use. Light, grips well and highly functional. The problem is because of its directional nature, it has to be pre-installed with right or left hand operation in mind.

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