Repair a Rusty Japanese Knife over a month

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  • 게시일 2023. 05. 29.
  • It took me a month just to sharpen the battered Japanese Knife .
    I develop various instruments and tools.
    Click here for the plan
    jsk-koubou.stores.jp/
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댓글 • 621

  • @jisakukobo
    @jisakukobo  11 개월 전 +69

    If you like the video, please introduce it to your friends and social media !
    Please watch with subtitles turned on.
    字幕をONにして視聴してください。

    • @mikoro88
      @mikoro88 11 개월 전 +4

      Man I just _love_ ALL your jigs, rigs and setups! It's all just _SO_ incredibly clean, and well executed! And always satisfying to watch. 😊

    • @notfeedynotlazy
      @notfeedynotlazy 10 개월 전 +1

      Thanks for taking the effort to add captions. 👍
      Heads-up, at one point (5:46) the English subtitles are not in English.
      Heads-up x 2, at several points you make a minor English mistake that wouldn't be worth nitpicking about (since you took the effort to do them to begin with!), but since it changes the meaning I'm bringing it to your atention. When you talk about "dents" I was very confused, as I saw no holes in the edge proper. Then I realized you meant the _pits_ caused by the rust. 😁

    • @reynaldoberena2824
      @reynaldoberena2824 10 개월 전

      E

    • @user-mo5np6lx5h
      @user-mo5np6lx5h 10 개월 전 +1

      Нивхи за месяц до хода рыбы точили ножи и причём вручную. И камни для этого подбирали в речках.

    • @user-cj1jn7kx9v
      @user-cj1jn7kx9v 10 개월 전

      Пятиминутный ролик растянуть на полчаса... 🤦🤦🤦

  • @robertoortega1801
    @robertoortega1801 11 개월 전 +17

    You're an extremely gifted artisan. I love your work, I found it very inspirational.

  • @terenceblakely4328
    @terenceblakely4328 16 일 전 +1

    The thing that impressed me the most was that he found a newspaper to test the sharpness.

  • @rjung_ch
    @rjung_ch 11 개월 전 +14

    You make the best videos, top 5 for sure!
    Love the detail and amazing quality of work, doesn't matter what it is, a new build / jig / restoration.
    🙏

  • @mor8266
    @mor8266 11 개월 전 +15

    That is truly beautiful work. A knife of this quality deserves the time and effort to restore. You're the greatest.

  • @davidcrossley7145
    @davidcrossley7145 9 개월 전 +1

    I really enjoyed watching you bring this rusted old knife back to life.”true craftsmanship excellent “ 👍

  • @nielslund9359
    @nielslund9359 10 개월 전

    I so admire your craftsmanship. Well done!

  • @Tuxedo2680
    @Tuxedo2680 4 개월 전

    A labour of love. Such patience and skill. Kudos to you Mr. Koubou

  • @pin20mentanpin54
    @pin20mentanpin54 4 개월 전

    一切の挿入音無しで緊張感たっぷりのコンテンツ作り。ただただ素晴らしい!

  • @gilbertdelgado6703
    @gilbertdelgado6703 3 개월 전 +3

    Fabulous workmanship, it is apparent that you are a master craftsman.

  • @MASI_forging
    @MASI_forging 11 개월 전 +3

    Turned out to become a beautiful knife and you did a great restoring it as well.👏👏

  • @Marcus_Shaw
    @Marcus_Shaw 11 개월 전 +12

    Would have liked to see the maker's marks left, perhaps fading the polish to leave the original patina at the top of the blade?
    All the same, nice job 👍

    • @ericfg806
      @ericfg806 10 개월 전 +3

      I agree. I don't understand removing the maker's mark just for a mirror polish.

    • @raymondengineering8951
      @raymondengineering8951 3 개월 전 +1

      It said,
      Made in china 😂

  • @thecalif2914
    @thecalif2914 10 개월 전

    Definition of "Hobby":
    Achieving the least revenue, with the greatest possible effort.
    A great example of craftsmanship, patience and also respect for the beauty and sharpness that comes out from under the rust!

  • @kimharris7231
    @kimharris7231 4 개월 전

    Incredible clean and precise work by a craftsman with immense patience. Painstaking work resulting in a beautiful knife. Superb.

  • @bobridge5271
    @bobridge5271 11 개월 전 +65

    For those who don't know, this is a right-handed knife for fish filleting, called a deba. They are usually made of carbon steel because that can be made sharper, but prone to rust, of course, as seen in this video. Left-handed deba are widely available in Japan, but I am not sure about overseas. If you are left-handed, be sure to get the correct-handed deba ! It is impossible to use a right-handed deb with the left hand, and vice-versa, as it will dig into the fish bones and generally make a big mess.

    • @lancemillward1912
      @lancemillward1912 10 개월 전 +4

      Usually two types of steel welded together. Hard steel for the blade edge and etch up awesome in ferric chloride

    • @josephedlin2172
      @josephedlin2172 10 개월 전

      I’ve never heard of a left / right handed knife - how do they differ?

    • @kingsta3174
      @kingsta3174 10 개월 전 +2

      @@josephedlin2172 the only have a bevel on one side

    • @karttu1
      @karttu1 5 개월 전

      We be interesting to see how filleting is performed with such a thickness of the blade.

    • @zoned1361
      @zoned1361 4 개월 전

      Why is the blade so thick? It seems like it's almost 1 centimeter thick.

  • @YiannisPagonis
    @YiannisPagonis 10 개월 전 +1

    Excellent job sir. You deserve a thousand thumbs up! 👍👍👍👍

  • @metatechhd
    @metatechhd 11 개월 전 +21

    Wow, the craftsmanship on this knife is simply astounding. It's clear that restoring a knife of this caliber requires immense dedication and skill. You truly are a master in your craft, and your attention to detail is commendable. This video of you sharpening your knives for a month is intriguing, and I can't wait to see the incredible results! 🔪✨🔧

    • @-danR
      @-danR 10 개월 전

      To make the month go by really fast, he chose February.

    • @xl000
      @xl000 10 개월 전 +1

      can you tell me which part you found the most astouding ? Because it's mostly sanding, and making an oval handle

    • @alexma9408
      @alexma9408 10 개월 전 +1

      Самое мутное и скушное видео, что я видел!

  • @EffToyz
    @EffToyz 9 개월 전 +1

    this video is amazing! I never knew you could restore knife in such condition!

  • @ShamblerDK
    @ShamblerDK 10 개월 전

    That is simply beautiful. You're truly an artisan.

  • @2030ification
    @2030ification 11 개월 전 +4

    From an old utility knife to a collector's item. This is just WOW!

    • @fonziyo
      @fonziyo 10 개월 전 +3

      You're wrong, the makers mark is gone making the knife worthless

  • @michaellee8198
    @michaellee8198 7 개월 전

    Beautiful work!

  • @talegunner4414
    @talegunner4414 8 개월 전

    what a beautiful knife. Great work. You take your time and create a fantastic piece of functional art. I wish I had your patience.

  • @SiTengoTiempo
    @SiTengoTiempo 10 개월 전 +1

    Excellent work. Excellent precision.

  • @LaelsonMachadodaSilva
    @LaelsonMachadodaSilva 10 개월 전 +3

    Jisaku Koubou ... excelente trabalho ! perfeita qualidade ! admiro muito seu cuidado ! Parabéns !!!

  • @stefanwesterberg5319
    @stefanwesterberg5319 6 개월 전

    Awesome restoration! Wow! 😎 Two thumbs- up 👍👍

  • @jacobenard2188
    @jacobenard2188 14 일 전

    Very nice! Spitefully are the disappeared Japanese characters on the blade. Furthermore excellent job.

  • @pauljarine
    @pauljarine 8 개월 전

    Incredible! Thank you.

  • @torbjornnilsson5057
    @torbjornnilsson5057 3 개월 전

    What a fabulous work! You are awesome!

  • @mariopisanello65
    @mariopisanello65 11 개월 전 +3

    Semplicemente meraviglioso. Grande ammirazione. Non solo per questo lavoro, ma per tutti i tuoi lavori.

  • @stevefromlondon9175
    @stevefromlondon9175 10 개월 전

    Amazing workmanship it's beautiful the end result
    Regards
    Steve UK London

  • @user-fo5rj4sr1b
    @user-fo5rj4sr1b 10 개월 전 +6

    あの錆びた包丁がこんな新品みたいになるなんて凄いですね!見事な仕事でした

  • @tomdrew5608
    @tomdrew5608 11 개월 전

    You did very well with this, sir.

  • @user-xp4xi3nb9n
    @user-xp4xi3nb9n 11 개월 전 +1

    Your are the best! The MASTER of precision!!!

  • @erroldavis2983
    @erroldavis2983 4 개월 전 +1

    I should’ve known better, is the perfect guy, with perfect wooden tools, with a perfect results on everything that he does, because he’s the perfect guy in the woodworking business ! I can’t help, but think he’s the perfect man!

  • @lvttvn9365
    @lvttvn9365 2 개월 전

    Thanks for your excelence videos , your technique is superb. Great lessons teached and repeatable.

  • @phillipzx3754
    @phillipzx3754 2 개월 전

    Beautiful work.

  • @AmazingSmart-ngth
    @AmazingSmart-ngth 6 개월 전

    WOW...great ideas 💡 ✨!!! I will definitely use some of these ideas. THANKS 😊

  • @bluejijiikemen5537
    @bluejijiikemen5537 10 개월 전

    いつもながらの凄腕!兎に角、あなたの作業はどれも隙が無くほれぼれする。この修復の分野もさぞ成功するでしょう。
    楽しみにしています。

  • @scottrose5012
    @scottrose5012 5 개월 전

    That was truly magnificent to watch, thank you so much for sharing your fine art with us. You are a true Master of your trade. Domo...

  • @edmedlin2936
    @edmedlin2936 2 개월 전

    I have restored many, many deba knives. Yours is more beautiful by far than any of mine.

  • @UnniKrishnan-wq7ze
    @UnniKrishnan-wq7ze 11 개월 전

    Your works always great. And very interesting to watch.❤

  • @robertrich1216
    @robertrich1216 10 개월 전

    Amazing...such care and skill!!

  • @markduggan3451
    @markduggan3451 11 개월 전

    That was an amazing restoration of a magical knife.

  • @DavidSmith-ss1cg
    @DavidSmith-ss1cg 10 개월 전

    Exquisite! Thanks for sharing this with us.

  • @johnmccormick650
    @johnmccormick650 6 개월 전

    Great restoration ❤

  • @mirekkuzminski3956
    @mirekkuzminski3956 9 개월 전

    Awesome work ❤️🌞

  • @jo-ym7zl
    @jo-ym7zl 4 개월 전

    I love all your videos. You have lots of great ideas and you are so diligent. That sounds awesome. Bravo and thank you for everything you share.
    あなたのビデオはすべて大好きです。あなたは素晴らしいアイデアをたくさん持っていて、とても勤勉です。それはすごいですね。ブラボー、あなたが共有してくれたすべてに感謝します

  • @bradleytuckwell4881
    @bradleytuckwell4881 11 개월 전 +1

    Beautifully done it looks stunning

  • @whitelionsilentpride3488

    Amazing job 👏🏻👏🏻👏🏻👏🏻

  • @stevefromlondon9175
    @stevefromlondon9175 4 개월 전

    Outstanding work looks better than new
    Regards
    Steve UK London

  • @elito1138
    @elito1138 10 개월 전

    absolutely incredible

  • @michaelnorman5640
    @michaelnorman5640 9 개월 전

    Another masterpiece you are amazing and inspiring! Make me want to go sharpen up some overdue chisels and planes that are in need of tuning and just been putting off! 😂

  • @SERGEY_Vlasenko
    @SERGEY_Vlasenko 11 개월 전

    Perfect job!

  • @PapaManitas
    @PapaManitas 4 개월 전

    Un cambio espectacular, increible como lo has dejado. Saludos desde España.

  • @FutureEon
    @FutureEon 11 개월 전 +17

    🔪✨🔧 Absolutely mind-blowing craftsmanship! The level of skill and dedication required to restore a knife of this caliber is truly awe-inspiring. Your attention to detail is exceptional, and it's intriguing to witness your month-long journey of sharpening these knives. I'm eagerly anticipating the incredible results you'll achieve. Keep up the amazing work! Can't wait to see more. ⚒🔥💪

  • @SomewhatAbnormal
    @SomewhatAbnormal 11 개월 전 +10

    Wow, that’s a very thick piece of steel and worth fixing!
    When restoring a knife I start with rust remover (chemical process), followed by belt grinding (I use an OBM 2x72), then I move on to more refined whetstone work. I find this to be the fastest way to restore.

    • @Bob_Adkins
      @Bob_Adkins 11 개월 전 +2

      That blade was so thick it needed a half hour on the 2x72. I have never seen a kitchen blade so thick!

    • @binghoward70
      @binghoward70 11 개월 전

      @@Bob_Adkins this knife is for cutting big tunas. It is strong enough to cut thru the rib bones.

    • @SomewhatAbnormal
      @SomewhatAbnormal 10 개월 전 +1

      @@Bob_Adkins I have made a butcher knife that thick but I’ve never seen a chef knife like this!

  • @phooesnax
    @phooesnax 11 개월 전 +2

    This fellow always pursues excellence!

  • @WGARES
    @WGARES 11 개월 전 +36

    The knife that was used for the restoration had a brand, you can find out who the master or the manufactory that made it.

    • @MrTerrymiff
      @MrTerrymiff 11 개월 전 +8

      It had a brand but he ground it off.

    • @sittingstill3578
      @sittingstill3578 10 개월 전 +7

      2:21 - right after the sandblasting it’s visible.
      2:56 is even more clear.

    • @xMiRox
      @xMiRox 7 개월 전 +4

      Sadly, the knife lost all the info about who made it… I don’t understand why he ground it off ☹️

    • @raymondengineering8951
      @raymondengineering8951 3 개월 전 +4

      He ground it off because it said,
      Made in china 😂

  • @user-qu9es7vt9h
    @user-qu9es7vt9h 9 개월 전

    まさかこの包丁自体も鍛冶屋もこんなになるまで復元+αしてもらえるとは、思いもよらなかったでしょうなぁ…。
    取り敢えず、両者共本望であろうことは間違いないでしょう。👍👏

  • @tjacksonwoodworker3726
    @tjacksonwoodworker3726 11 개월 전

    awesome restoration! I enjoy your videos.

  • @plunder1956
    @plunder1956 11 개월 전 +5

    My first thought was: At least it has a long robust Tang. You can do almost anything, but if the Tang is bad, it's almost a waste of time. This is rusty but thick.

    • @kefwals8722
      @kefwals8722 11 개월 전 +1

      Agreed your tang quality can make or break the show. As a child the baseball team would have pizza parties hosted by a different parents home. And the lower middle class parents would provide orange tang possibly grape which was equally acceptable. Then we'd go to a more upperclass parents home a different week and they would put out somehing crazy like pineapple or horchatas flavor tang which was as you say just a waste of time. It wasn't until I was saying 16 or 17 until I was to discover Wu-Tang and I was really able to start making sense of the world. In the end It always comes down to Tang quality when deciding whether something's worth doing or not

  • @TocilarulTimisorean
    @TocilarulTimisorean 10 개월 전 +3

    Great restoration👏
    Maybe for the next awase Deba you end with a Kasumi finish on the bevel.
    This finish looks better on honyaki blades 😉

  • @pinkkisiel3731
    @pinkkisiel3731 3 개월 전

    Looks like a new knife, but I'd personally try to preserve the maker's mark as much as possible. Any good knife deserves this much.

  • @kaimann69
    @kaimann69 11 개월 전 +1

    I remember when you started this proyect .... 3000 years ago, I was there! - Elrond 😅

  • @bramweinreder2346
    @bramweinreder2346 10 개월 전 +7

    This is by far one of the best restaurations I've seen. Too many people only care about the mirror finish but still leave the knife pitted, they don't care about the flatness of the edges or the transitions between them. They attack it with power tools like Philistines without understanding the craft involved or the longevity and usability of the work piece, while you have an obvious love for these things.

    • @zippy1981dotnet
      @zippy1981dotnet 10 개월 전 +2

      With regards to the pithing, you remove a lot of metal to get rid of pithing. It's not always worth it.

    • @amyhund3786
      @amyhund3786 10 개월 전 +1

      Die Elektrowerkzeuge mit langsam drehendem Wasserstein führen zu einem exakten Freiwinkel der Schneide. Wie deutlich zu sehen ist bekommt er das freihändig nicht hin.

    • @tasmedic
      @tasmedic 10 개월 전

      I think this would have been much quicker and easier with diamond stones like my ATOMO 100, and 400. It'd likely be possible to do 4 knives like this in a month using the right stones to complete the initial reprofiling. Having the sandblasting equipment was a good idea. Wish I had that. I gather that you can get attachments for pressure washes which can draw in blasting sand, but I've not seen one for my Gerni pressure washer.
      I'm sad that the maker's mark has been permanently removed from this blade. It would have been considerate to etch that back on after the restoration.

    • @waltermann779
      @waltermann779 5 개월 전

      Vor paar Monaten habe ich auch so eins restauriert, das war wirklich schwer und mühsam

  • @weldabar
    @weldabar 11 개월 전

    Wow what a great find and restoration!

  • @user-qr7xz4dl4s
    @user-qr7xz4dl4s 10 개월 전

    研ぐ、砥ぐ、磨ぐ
    同じトグでも色々な種類と方法が有ります
    TOGUって奥が深いですよね。

  • @justtim9767
    @justtim9767 4 개월 전

    Beautiful.

  • @airford13
    @airford13 4 개월 전

    very impressive! you got a new follower from this. cant wait to see more!

  • @Inventor102usa
    @Inventor102usa 2 개월 전

    Knife sharpener master. Thank you ☺☺☺

  • @margaretragle1337
    @margaretragle1337 11 개월 전

    Watching that rusted knlfe get a wonderful make over AWESOME.

  • @volkangunyeli
    @volkangunyeli 11 개월 전

    Perfect job master. Very clean. 💯👍👏👏🙌

  • @kalaipaa
    @kalaipaa 4 개월 전

    Amazing and very patient work!!! Joozu desu ne!!!

  • @musamor75
    @musamor75 9 개월 전 +3

    Absolutely superlative job. All my respects.
    Unfortunately here in France, and in Europe in general, it's very hard to get proper Japanese sharpening stones, especially the very large ones like you use. I was wondering what the white powder you sprinkled on the stone was?
    You brought back the rusty old knife back to life as a thing of beauty.

    • @lightube12
      @lightube12 6 개월 전

      i think is a polishing compound used both for high shine and sharpen.

  • @fabriciohernandezlopez849

    un trabajo prefecto y exelente JSK.......impreciosnante,,,,,,,,,,,bendiciones-------

  • @user-qy8dl2ev9s
    @user-qy8dl2ev9s 20 일 전

    Los mejores referente a la elaboración de cuchillos ( los japoneses). Toda una obra de arte la restauración de este cuchillo 😮. La dedicación y paciencia da como resultado éste final asombroso

    • @jisakukobo
      @jisakukobo  19 일 전

      Me alegro que hayas comentado.
      Hago varios videos de manualidades, así que suscríbete a mi canal.
      gracias

  • @sights2397
    @sights2397 2 개월 전

    Absolutely beautiful work! But.. too bad that the signature was lost in the process .. anyways, stunning, love it!

  • @roromanche7767
    @roromanche7767 15 일 전

    Très beau travail !

  • @kleckerklotz9620
    @kleckerklotz9620 11 개월 전

    Unconventional, yet creative way. I like it.

  • @Sparky_D
    @Sparky_D 11 개월 전 +1

    This video has come just as I've been looking to sharpen some of my knives.
    As always, you've done an amazing job.

  • @james-jq8sk
    @james-jq8sk 11 개월 전

    That's a very nice sharpening set-up with the blue container...

  • @kaunas888
    @kaunas888 3 개월 전

    It's not a knife; it is a work of art.

  • @fulkir1230
    @fulkir1230 9 개월 전

    Midnight and I'm here watching this video, why can't I stop watching? 🥲

  • @user-od5db1lf6n
    @user-od5db1lf6n 27 일 전

    お、すごい!木屋井筒木の出刃だ!白鋼で研ぎやすくて切れ味もいいので大好物です。
    結構鋼も残ってる様に見えますので大事に使ってあげないとですね。
    しかし、木屋井筒木の刻印が完全に消えるまで平を削るのはすごい大変だと思うので脱帽です👏

    • @jisakukobo
      @jisakukobo  26 일 전

      本当は刻印残したかったのです。残念。。。

  • @gayazmusin1334
    @gayazmusin1334 11 개월 전 +1

    Поймут только русскоязычные, я так думаю 👆- как говорил Мкртчян ))) Как в Белом солнце пустыни : Верещагин, как хочешь умереть ? Быстро или в муках ? На что Верещагин отвечает ( чуть не закатив глаза к небу ) Хотелось бы конечно помучиться !!!
    Это ж СБРЕНДИТЬ, не встать 🤔🤔🤔🤔🤔 МЕСЯЦ !!! МЕСЯЦ заниматься ОДНИМ ножом !!! Чекнуться. Вот это терпения. Про мастерство ваще не говорю.

  • @salahmohidine9579
    @salahmohidine9579 3 개월 전 +1

    Perfect work carried out to perfection by a master's hand !

  • @stefanotomassi5161
    @stefanotomassi5161 7 개월 전

    Sei stato molto bravo ! un saluto dall' Italia

  • @lexvane3494
    @lexvane3494 10 개월 전

    again, very nice craftsmenship

  • @user-fc7te9sz7d
    @user-fc7te9sz7d 개월 전

    Современный ноунейм китай... И ржавчина уж очень современная... Ни разу до этого не юзаный набор юного мастера для заточки ножей... Видео от и до постановка...))))

  • @user-xv9mm9we9t
    @user-xv9mm9we9t 10 개월 전

    いい仕事してますねぇ~。感動しました。

  • @chicaborba9178
    @chicaborba9178 10 개월 전 +2

    Que trabalho lindo . Parabéns ! Brasil

  • @chancethe9374
    @chancethe9374 3 개월 전

    You are master!!

  • @vikshaban
    @vikshaban 8 개월 전 +2

    Потрясающая работа!!!

  • @udoburmester5733
    @udoburmester5733 11 개월 전

    Great and fascinating work, no artwork!

  • @Rodo1946
    @Rodo1946 5 개월 전

    Muy buena restauracion, el acero al carbono es sin duda el mejor filo, precisa de muchos cuidados, el acero japones tradicional es al carbon. Me parece que en el proceso de quitar el oxido, tambien se quito las letras, una pena no se hayan recreado. Felicitaciones por el trabajo manual, pero valio la pena.

  • @renatoferreiralima6931
    @renatoferreiralima6931 10 개월 전 +1

    Amazing!!!!

  • @koklkoklkoki3561
    @koklkoklkoki3561 8 개월 전 +1

    2倍速で見ました ちょうど良かったです。

  • @warrenhunt5556
    @warrenhunt5556 11 개월 전

    G'day and Hajimemashite JSK-koubou san,
    Your craftmanship and passion for what do, has my complete and humble admiration to the meaning of perfection. BRAVO ZULU mate. Hooroo and tsugi no bedeo made!

  • @Ricardo-Royco
    @Ricardo-Royco 10 개월 전

    Tres tres beau boulot ! Félicitations

  • @user-nx5hw3it4m
    @user-nx5hw3it4m 2 개월 전

    The knife became beautiful - as a toy, amazing. It' a pity that original mark was removed while restoring. The handle seems too simple. But your work is exellent!