History of the Unokubi-zukuri katana [sword talk/historical]

[@SneakyGenius]

My main backyard cutter is an unokubi zukuri, I love her, she's beautiful with japanese blue silk ito.

[@kevinstachovak8842]

Just got a katana from Swords of Northshire with a long tsuka and unokubi-zukuri style blade. Very exquisite compared to my other katanas. I really like this style of blade geometry! Edit: I'm glad I found this channel!

[@JoeSteel1]

Great Info, thanks for making this up, I'm a sucker for japanese sword history...really interesting and well done

[@TONEDEAFSOUND]

this type of geometry is so cool i found a blade with it and it is very mean looking great content i learned a ton from this

[@jesseswalters]

Nice to know... I figured for sure they were royal executioner swords or something... made to chop heads off. I make swords and lately I have been all in on Unokubi blades

[@erichusayn]

Cool. My favorite nlade g3ometry forsure...

[@JustaBug]

It's definitely a polarising geometry. Some love it some hate it. Glad you found your match

[@kirkbelmont8430]

Thank you very much for your lessons.

[@jackarrows1436]

T10 single layer steel, better full tang, the sword is stronger, modern manufacturing. Contains a percentage of tungsten. It makes it resilient. I agree with you up to a point. You have to see how they are used, as all swords have weaknesses. I love unokubi tzukuri. Greetings to South Korea. THX for the video

[@JustaBug]

I love T10 steel, fantastic steel for a monosteel blade and I'd agree it'd make up for the thinness of the unokubi zukuri's spine

[@jackarrows1436]

@@JustaBug 🙏

[@PutYourQuarterUpGaming]

Thanks for posting this. Picked up one over last year as fell in love with look and feel of this style. Been trying like crazy to find a coherent history of the blade since. Love idea behind it too. Lighter, faster but weaker overall - not a dullards tool, duelists’ sword, ie skill over force. If blocking or deflecting that blade till breaks maybe not worthy of it anyways haha Jokes aside curious if read this do you think the cavalry swords, think called tachi (style Shingen made famous), had any influence on their inception, ie by that time period would most samurai have been mounted anyways? Ie lighter, easier to handle. I can easily use it one handed versus my...normal(?) style katana where just can’t get same swing if I imagine being in such a situation lol

[@JustaBug]

I think the naginata had more of an influence than the tachi and the lightweightness was a pleasant side effect

[@ethanmatteo4484]

instablaster.

[@Katana-Karl]

Awsome info here! Thanks!

[@alunrogers3525]

I have an unokubi zukuri blade katana from Japan and also a Nagamaki with the same blade from yarinohanzo.

[@Leman.Russ.6thLegion]

These are so cool.

[@JoeSteel1]

I subed your channel...good job!

[@JustaBug]

Thanks for the support!

[@JoeSteel1]

@@JustaBug absolutely and if you can return the gesture and check out and sub..my channel as well...I do high quality swordcraft reviews and ramble..thanks friend, I'm actually going to use some of your info on an upcoming unicobi zukuri raptor sword im reviewing 😀

[@notsans9995]

Whats the differense between a moroha and kanmuri otoshi syle blade? both seem to be double edged and have similar blade shape, though when I try to look up moroha I usually see that kogarasu style blade. Its very frustrating because I'm doing research for a comission of a sword but google is rife with misinformation

[@JustaBug]

A moroha zukuri blade is double edged with an asymmetric ridge line, usually found on tanto. A kanmuri otoshi blade is not necessarily double edged. It is like an unokubi zukuri blade with the thinned spine towards the tip but it does not widen again at at kissaki. It was commonly done for naginata. Hope that helps!

[@JoeSteel1]

I have a question, was an actual unocobi used as a Katana by Samurai at any time period other than the naginata...or is the Katana form a modern sword creation?...im doing a video on my channel of my Hanwei raptor

[@JustaBug]

They were used by samurai. Often from blades refashioned from old naginata

[@JoeSteel1]

@@JustaBug Thanks for the info my friend I will leave a link and credit to your video in my description

[@JustaBug]

Cheers! I appreciate it

[@user-qq2rk4jj9r]

On katana and curved tachi, it is less common for kissaki to have all of the back edge sharpened, or even a full hamon on the back edge. Often only the top 3 inches more or less were sharp. Similarly, on kissaki moroha Tang dao and chokuto that preceded tachi and katana, the back edge was normally only a few inches anyway, as opposed to a full third of the blade. This was probably done to make the blades safer to re-sheath. I think this is why the geometry is called "kissaki moroha" instead of "Monouchi Moroha", because only at the kissaki on both sides is actually sharp... at least that's my guess.. Though I have seen pics of a few antique kissaki-moroha blades that seem to have a full back hamon, or have a stylized polish to look like it, and I'm sure there are plenty of examples where the back edge is actually sharp the full upper third of the blade. Given there are plenty examples of fully double edge shoto, it wouldn't be a stretch for there to be examples of kissaki moroha with the back edge fully sharpened, just seems to be less common

[@JustaBug]

Yes, definitely. That's a good point with the hamon, I see very few examples with a full hamon on the back edge. Thanks for your input! Also, I haven't seen any examples of kissaki moroha chokuto or tang dao, if you've got sources I'd greatly appreciate it. Makes sense that they would exist

[@user-qq2rk4jj9r]

@@JustaBug Kissaki moroha chokuto: www.ksky.ne.jp/~sumie99/kissakimoroha.html

[@user-qq2rk4jj9r]

@@JustaBug KZbin sometimes blocks comments with links due to bots, so I'm not sure if you got my last comment, but if you look up "kissaki moroha chokuto" on Google images, it's the very first picture

[@JustaBug]

Your link worked perfectly. Thank you for that it was a fantastic read

[@user-qq2rk4jj9r]

@@JustaBug Thank you for the fantastic vid

[@daniellopezeverest]

Thank you for sharing awesome video! I have two swords like that when I first saw them with my hands because I am blind I thought they were messed up they did did them wrong or something LOL they are the shinwa teal Katana and the shinwa Colossus odachi

[@JustaBug]

Its incredible that you are still a swordsman despite being blind. You have my respect

[@daniellopezeverest]

Thank you I went blind in both my eyes 4 years ago so I'm totally blind and I started swordsmanship about a year ago

[@JustaBug]

Hope my explanations are enough without the visual aids. If you have any questions on any of my vids please ask and I'll happily clarify

[@daniellopezeverest]

@@JustaBug cool thank you so much I really appreciate it! :-) the video you did on the three different draw Cuts was perfect I do have a question though about the video you did the two Rising Cuts I just wanted to know from the first Rising Cut what side did you start and then did when you transition to the second one how how exactly did you do that? Thank you so much! :-)

[@JustaBug]

For the mizuguruma rising cuts I started with a bottom left to top right rising cut, then made a small flourish to loop back around for a bottom right to top left rising cut while keeping all the momentum. This was in a right foot forward stance with a wakizashi. With a katana you can do it the same but shorten the stance so you aren't worried about harming the front knee

[@wellregulated8725]

I just did my first sword video... let me know what you think!! 🤜🏼🤛🏼

[@JustaBug]

Nice vid! Definitely envious of the tatami, theyre almost impossible to get over here at a decent price

[@wellregulated8725]

Just a Bug 10 bucks a pop online.... won’t be doing this too often...

[@wellregulated8725]

Just a Bug www.amazon.com/gp/aw/d/B078YG2NCJ?psc=1&ref=ppx_pop_mob_b_asin_title

[@JustaBug]

10 bucks is definitely significantly cheaper than they are over here haha