SKU: 62295318665

Tetsujin Blue 2 Kasumi Santoku 180mm

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Description

Tetsujin Blue 2 Kasumi Santoku 180mmMeasurements 180 mm Weight 148 g Tip to Heel Length 169 mm Blade Height at Heel 47 mm Width of Spine Above Heel 3. 2 mm Width of Spine at Middle of Blade 2. 5 mm Width of Spine at about 1 cm from tip 0. 7 mm Steel type: Blue 2 with soft iron clad Hardness (HRC): 62 64 Handle Design: K&S Teak wood handle. Optional handles available. Tetsujin Blue 2 Kasumi is the little brother of the well known Tanryusen line. Offering the same profile, same grind,

Measurements 

180 mm
Weight 148 g
Tip to Heel Length 169 mm
Blade Height at Heel 47 mm
Width of Spine Above Heel 3.2 mm
Width of Spine at Middle of Blade 2.5 mm
Width of Spine at about 1 cm from tip 0.7 mm

 

Steel type: Blue 2 with soft iron clad

Hardness (HRC): 62-64

Handle Design: K&S Teak wood handle. Optional handles available.  

Tetsujin Blue 2 Kasumi is the little brother of the well-known Tanryusen line. Offering the same profile, same grind, same steel, except the foriging cloud of the Tanryusen. Same as Tanryusen, this Blue 2 Kasumi line is forged by Toru Tamura (田村 徹) and sharpened by Naohito Myojin (明神 直人).

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Naohito Myojin (明神 直人) is a young sharpener based in Kochi prefecture. While his workshop Myojin Riki Seisakusho is probably not as famous as the established brands from Sakai and Echizen, he is the sharpener behind some of the very famous knife lines in the industry; noteabley the Tetsujin brand and the 'Fujiyama' line by Konosuke. 

I think 'refined' is the best word to describe Naohito's work: while featuring proven cutting performance, his knife has some of the best finishes out there. The spine is nicely chamfered, choil is well polished. By engraving his name Naohito on to the knivves, you can tell that he must be really proud of his work, and I trust you will enjoy his knife as well. 


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SKU: 62295318665

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Reviewed in the United States on May 15, 2026
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Chelsea, US
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★★★★★ 5
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Robert&Robbie
Natrona Heights, US
★★★★★ 4
Great for indoor use.
Size: 10-11, Color: Cable Knit Navy
I bought a pair of these for myself about a year ago and there are plusses and minuses to them. They are comfortable and warm, without getting my feet sweaty or whatever. That's exactly what I wanted. On the minus side, mine ran far too small. I am a 10.5-11 shoe size and the 10-11 is about a half inch too short... my heels are sliding off the back. I am reordering a size 12-13 to try that one. In the take note column, the soles are NOT rubberized in any way. In fact they are like foam, and will absorb water! Also they do not provide cushioning against any kind of rough surface. I think they are perfect for strictly inside the apartment use, but they are not like moccasins or something that allow outdoor use. And I am ordering a 2nd pair after a year so I do like them.
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Reviewed in the United States on November 24, 2025

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