SKU: 84681369483

Tetsujin Blue 2 Tanryusen Petty 165mm

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Description

Tetsujin Blue 2 Tanryusen Petty 165mmK&S is pleased to bring the highly regarded Tetsujin () brand to our customers. More excitingly, we are also among the first resellers to introduce you the Tanryusen () Blue 2 line. Tanryusen literally translates into "the forged wave line". I think this pic below is self explanatory: the Tanryusen features some highly visible forging cloud on the iron cladding, very similar to the much loved and elusive Shigefusa cloud. The difference is that, often

K&S is pleased to bring the highly regarded Tetsujin (鉄人作) brand to our customers. More excitingly, we are also among the first resellers to introduce you the Tanryusen (鍛流線) Blue 2 line. Tanryusen literally translates into "the forged wave line".

I think this pic below is self-explanatory: the Tanryusen features some highly visible forging cloud on the iron cladding, very similar to the much loved and elusive Shigefusa cloud. The difference is that, often this type of forging lines are found on knives cladded with old wrought iron, which are usually rare and expensive; in contrast, the cladding cloud on Tanryusen is formed by great forging and sharpening techniques of the makers. 

 

(the highly visible cloud on the cladding of the Tetsujin Tanryusen line, resulted from Tetsujin's masterful forging and sharpening skills)

In case you are not familar with the Tetsujin brand, it is a collabration between two friends and colleagues: Toru Tamura and Naohito Myojin of Myojin Riki. It is famously carried by Konosuke Sakai as a sub-brand

Blacksmith: Toru Tamura (田村 徹)
Sharpener: Naohito Myojin (明神 直人)

======

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. 


Measurements 

165 mm
Weight 81 g
Total Length 300 mm
Tip to Heel Length 160 mm
Blade Height at Heel 32.4 mm
Width of Spine Above Heel 2.6 mm
Width of Spine at Middle of Blade 2.1 mm
Width of Spine at about 2cm from tip 1.0 mm

 

 

Steel: Blue 2 Steel with soft iron cladding

Hardness: HRC 62-63

 

Handle Design: K&S Teak wood handle with options

 

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SKU: 84681369483

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Debbie
Cuba, US
★★★★★ 4
The glow doesn’t last long, not super bright.
Style: Recharges, Size: Medium
I charge my glow in the dark balls with a black light flashlight, this one was not very bright, and it did not hold the charge very long. Also, with it being green, it was hard for my dog to find in the grass.
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Reviewed in the United States on April 6, 2026
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Hiker-A-Rama
Cuba, US
★★★★★ 5
Squeaks and glows
Style: Recharges, Size: Medium
Squeaks. Glows, and labs love them.
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Reviewed in the United States on January 19, 2026
M
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Mustang_Mark
Carnegie, US
★★★★★ 3
good but no glow
Style: Recharges, Size: Medium
good ball but as others say, the glow in the dark really isn't there.
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Reviewed in the United States on May 14, 2026
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Steve just Steve
Alexandria, US
★★★★★ 5
Good grip glow ball
Style: Recharges, Size: Medium
Love this glow in the dark Chuck IT. Get a black light flashlight to charge the neon instantly. Good texture gives the dog better grip than the smooth all white glow in the dark chuck it balls.
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Reviewed in the United States on January 9, 2026
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Mitch
Bozeman, US
★★★★★ 5
Our German Sheppard loves these
Size: Medium
These cost a bit more than tennis balls, but they are so much nicer and longer lasting. For starters, they stay cleaner than tennis balls because they’re smooth rubber. Dirt won’t build up on them and if anything does stick, like grass or soil, it falls off once the dog slobber dries. They’re also thick, so they don’t fall apart or blow out like a normal tennis ball does in our dog’s jaws after 30 seconds. Our GS chomps on these like crazy and the only damage they’ve suffered is a crack that developed from the edge of the hole, but the crack is growing very slowly and none of these balls have totally failed yet. The balls do whistle when thrown ant high speed and that may help a dog track and locate it, but I’m not sure. Our neighbors hear the whistling too so it’s far from silent. Lastly the orange ball is easy to locate out in our yard, but the dark blue practically disappears.
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Reviewed in the United States on April 6, 2025

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