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Takeshi Saji

Master Saji Rainbow Damascus Series Santoku 180mm (7 inch, Ironwood Handle)

Availability: Normally ships the same day

Beautiful and Japanese Tradition are the words that perhaps best describe these Custom Rainbow Damascus kitchen knives from Master Blacksmith Takeshi Saji.

The unique multi-colored Damascus blades match the natural figure and grain of the Ironwood Handles and the decorative mosaic pins exceptionally well. The knife handles are also fitted with a polished metal bolster for improved durability and blade-balance. The blades feature a core of Blue #2 high-carbon steel that is clad with multiple layers of rust-resistant stainless steel, brass and copper.

As you may already know, Master Saji is always seeking new methods and ideas for his innovative and distinctive traditional hammer forged knives. His expertise in advanced forging techniques and fabricating custom handles has allowed the creation of these very special, and utterly unique, custom Damascus knives.

The tall blade and rounded nose / tip of the Santoku make it a versatile knife that is well suited to cutting meat, fish, or vegetables; Hence it’s name, which literally means “Three-purpose”. The Santoku is often recommended as a multi-purpose kitchen knife.

Knife Model: Takeshi Saji Rainbow Damascus Series Santoku

Blade Material: Blue Steel No.2 with Rainbow Damascus Cladding

Rockwell Hardness (HRc): 62 to 63

Blade Grind and Edge Shape: Double Bevel Edge 50/50

Handle Material: Ironwood handle with Stainless Steel Bolster

Saya Included: No.


Santoku 180mm (7")

Cutting edge length: 180mm
Total Length: 300mm
Blade Thickness: 2.6mm
Blade Width: 49mm
Handle Length: 117mm
Total Weight: 244g



This knife comes with 50/50 double bevel edge geometry for both right-handed and left-handed use.

Please Note: In general, Japanese Kitchen Knives are designed for right hand use and their blades have a relatively strong convex grind on the right-hand side and relatively weak convex grind (almost straight) on the left-hand side. However, double bevel edge knives with a 50/50 grind can be used by both right-handed and left-handed people without any problems.

We believe that Japanese knives have the best quality and cutting performance in the world, and we hope that you will enjoy the fine craftsmanship and sharp edge of your new knife. With proper care, your new Japanese knife will be your faithful cooking partner for many years to come.


The Carbon Steel blade of this kitchen knife can discolor or rust easily. Consequently, extra care and attention are required to prevent it from rusting.

  • Please do not put the knife in a dishwashing machine for cleaning.
  • Please do not leave the knife in water or wet conditions for a long time.
  • After use, please hand wash the blade, bolster and handle thoroughly. After washing, wipe the knife clean and dry with a soft cloth, then apply Tsubaki (Camellia) oil to the blade before storing it in dry place.
  • This knife is extremely sharp! Please use extreme care when handling and storing it.
  • Unlike German-made knives, Japanese knife blades are ground to a thin cutting edge for improved cutting performance and easier re-sharpening. Please protect the blade edge from hitting hard materials, or it might chip or crack.
  • Please do not use the knife to cut frozen foods, bone, or any hard shell foods such as lobster or crab.
  • When your knife eventually becomes dull, we recommend using Japanese whetstones to re-sharpen it.
    Customer Reviews
    5.0 Based on 4 Reviews
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    Filter Reviews:
      Lazarus P.
      United States United States
      I recommend this product


      This is my everyday knife, I can’t wait to see a crazy patina. It’s already turning blue which I love and yeah this will be passed down to my future son.

      Garth H.
      Canada Canada
      I recommend this product

      Master Saji Rainbow Damascus Series Santoku

      The knife is all I expected it to be, absolutely gorgeous and insanely sharp. The knife is fun to use due it being so sharp but have only used a few times. I look at the knife as a pice of art and get just as much enjoyment just looking at it and showing it off. The other side of the great experience was dealing with JapaneseChefsKnife. What a great company. JCK made the whole process of ordering, shipping and tracking the order so simple. Not only that but the knife was well packaged and the delivery time was unreal. I live in Toronto Canada and got the knife faster from Japan than I would have got it from Vancouver Canada. Other companies could learn a lot from JCK. Garth Harrison Canada

      United States United States
      I recommend this product

      Saji Rainbow

      This knife is absolutely stunning. The damascus layering is beautiful, the fit and finish of the handle and mosaic pin is perfect, and the carbon steel blade is sharp as can be. Highly recommend any of the Saji Rainbow damascus blades.

      Eric G.
      United States United States
      I recommend this product

      Best knife you will ever own

      I had already owned a nakiri that I bought while in Japan made by Master Saji and I fell in love with it so much that I sought out more of his knives online. And the santoku is even better! The craftsmanship is absolutely beautiful. It cuts like a dream (It cuts raw potatoes like butter). And you know you have quality and a one-of-a-kind. Its a knife for life and worth every penny.

      JapaneseChefsKnife.Com Master Saji Rainbow Damascus Series Santoku 180mm (7 inch, Ironwood Handle) Review
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