Repair a Rusty Japanese Knife over a month

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  • Опубліковано 29 тра 2023
  • 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/
  • Навчання та стиль

КОМЕНТАРІ • 625

  • @jisakukobo
    @jisakukobo  11 місяців тому +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 місяців тому +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 11 місяців тому +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 місяців тому

      E

    • @user-mo5np6lx5h
      @user-mo5np6lx5h 10 місяців тому +1

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

    • @user-cj1jn7kx9v
      @user-cj1jn7kx9v 10 місяців тому

      Пятиминутный ролик растянуть на полчаса... 🤦🤦🤦

  • @robertoortega1801
    @robertoortega1801 11 місяців тому +17

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

  • @rjung_ch
    @rjung_ch 11 місяців тому +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 місяців тому +15

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

  • @davidcrossley7145
    @davidcrossley7145 10 місяців тому +1

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

  • @Tuxedo2680
    @Tuxedo2680 5 місяців тому

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

  • @nielslund9359
    @nielslund9359 10 місяців тому

    I so admire your craftsmanship. Well done!

  • @thecalif2914
    @thecalif2914 10 місяців тому

    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!

  • @gilbertdelgado6703
    @gilbertdelgado6703 3 місяці тому +3

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

  • @bobridge5271
    @bobridge5271 11 місяців тому +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 11 місяців тому +4

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

    • @josephedlin2172
      @josephedlin2172 10 місяців тому

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

    • @kingsta3174
      @kingsta3174 10 місяців тому +2

      @@josephedlin2172 the only have a bevel on one side

    • @karttu1
      @karttu1 5 місяців тому

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

    • @zoned1361
      @zoned1361 5 місяців тому

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

  • @MASI_forging
    @MASI_forging 11 місяців тому +3

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

  • @kimharris7231
    @kimharris7231 5 місяців тому

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

  • @talegunner4414
    @talegunner4414 8 місяців тому

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

  • @EffToyz
    @EffToyz 10 місяців тому +1

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

  • @YiannisPagonis
    @YiannisPagonis 10 місяців тому +1

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

  • @pauljarine
    @pauljarine 8 місяців тому

    Incredible! Thank you.

  • @michaellee8198
    @michaellee8198 7 місяців тому

    Beautiful work!

  • @DavidSmith-ss1cg
    @DavidSmith-ss1cg 10 місяців тому

    Exquisite! Thanks for sharing this with us.

  • @ShamblerDK
    @ShamblerDK 10 місяців тому

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

  • @2030ification
    @2030ification 11 місяців тому +4

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

    • @fonziyo
      @fonziyo 11 місяців тому +3

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

  • @metatechhd
    @metatechhd 11 місяців тому +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 11 місяців тому

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

    • @xl000
      @xl000 10 місяців тому +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 місяців тому +1

      Самое мутное и скушное видео, что я видел!

  • @pin20mentanpin54
    @pin20mentanpin54 4 місяці тому

    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!

  • @SiTengoTiempo
    @SiTengoTiempo 11 місяців тому +1

    Excellent work. Excellent precision.

  • @LaelsonMachadodaSilva
    @LaelsonMachadodaSilva 11 місяців тому +3

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

  • @Marcus_Shaw
    @Marcus_Shaw 11 місяців тому +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 11 місяців тому +3

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

    • @raymondengineering8951
      @raymondengineering8951 4 місяці тому +1

      It said,
      Made in china 😂

  • @stefanwesterberg5319
    @stefanwesterberg5319 6 місяців тому

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

  • @tomdrew5608
    @tomdrew5608 11 місяців тому

    You did very well with this, sir.

  • @torbjornnilsson5057
    @torbjornnilsson5057 3 місяці тому

    What a fabulous work! You are awesome!

  • @UnniKrishnan-wq7ze
    @UnniKrishnan-wq7ze 11 місяців тому

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

  • @AmazingSmart-ngth
    @AmazingSmart-ngth 6 місяців тому

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

  • @scottrose5012
    @scottrose5012 5 місяців тому

    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...

  • @mariopisanello65
    @mariopisanello65 11 місяців тому +3

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

  • @user-xp4xi3nb9n
    @user-xp4xi3nb9n 11 місяців тому +1

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

  • @bradleytuckwell4881
    @bradleytuckwell4881 11 місяців тому +1

    Beautifully done it looks stunning

  • @stevefromlondon9175
    @stevefromlondon9175 10 місяців тому

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

  • @edmedlin2936
    @edmedlin2936 2 місяці тому

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

  • @robertrich1216
    @robertrich1216 11 місяців тому

    Amazing...such care and skill!!

  • @lvttvn9365
    @lvttvn9365 2 місяці тому

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

  • @FutureEon
    @FutureEon 11 місяців тому +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. ⚒🔥💪

  • @phillipzx3754
    @phillipzx3754 2 місяці тому

    Beautiful work.

  • @mirekkuzminski3956
    @mirekkuzminski3956 9 місяців тому

    Awesome work ❤️🌞

  • @SERGEY_Vlasenko
    @SERGEY_Vlasenko 11 місяців тому

    Perfect job!

  • @elito1138
    @elito1138 10 місяців тому

    absolutely incredible

  • @tjacksonwoodworker3726
    @tjacksonwoodworker3726 11 місяців тому

    awesome restoration! I enjoy your videos.

  • @SomewhatAbnormal
    @SomewhatAbnormal 11 місяців тому +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 місяців тому +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 місяців тому

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

    • @SomewhatAbnormal
      @SomewhatAbnormal 11 місяців тому +1

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

  • @johnmccormick650
    @johnmccormick650 6 місяців тому

    Great restoration ❤

  • @weldabar
    @weldabar 11 місяців тому

    Wow what a great find and restoration!

  • @TocilarulTimisorean
    @TocilarulTimisorean 11 місяців тому +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 😉

  • @michaelnorman5640
    @michaelnorman5640 9 місяців тому

    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! 😂

  • @markduggan3451
    @markduggan3451 11 місяців тому

    That was an amazing restoration of a magical knife.

  • @stevefromlondon9175
    @stevefromlondon9175 4 місяці тому

    Outstanding work looks better than new
    Regards
    Steve UK London

  • @bluejijiikemen5537
    @bluejijiikemen5537 11 місяців тому

    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。

  • @terenceblakely4328
    @terenceblakely4328 23 дні тому +1

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

  • @PapaManitas
    @PapaManitas 4 місяці тому

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

  • @volkangunyeli
    @volkangunyeli 11 місяців тому

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

  • @bramweinreder2346
    @bramweinreder2346 11 місяців тому +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 11 місяців тому +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 місяців тому +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 місяців тому

      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 місяців тому

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

  • @airford13
    @airford13 4 місяці тому

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

  • @jo-ym7zl
    @jo-ym7zl 4 місяці тому

    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

  • @user-fo5rj4sr1b
    @user-fo5rj4sr1b 11 місяців тому +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

  • @erroldavis2983
    @erroldavis2983 5 місяців тому +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!

  • @fioenz
    @fioenz 5 днів тому

    Magnifique travail, j'ai adoré regarder cette vidéo...

  • @chicaborba9178
    @chicaborba9178 10 місяців тому +2

    Que trabalho lindo . Parabéns ! Brasil

  • @phooesnax
    @phooesnax 11 місяців тому +2

    This fellow always pursues excellence!

  • @Rodo1946
    @Rodo1946 5 місяців тому

    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.

  • @musamor75
    @musamor75 9 місяців тому +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 місяців тому

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

  • @whitelionsilentpride3488
    @whitelionsilentpride3488 26 днів тому

    Amazing job 👏🏻👏🏻👏🏻👏🏻

  • @sights2397
    @sights2397 2 місяці тому

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

  • @margaretragle1337
    @margaretragle1337 11 місяців тому

    Watching that rusted knlfe get a wonderful make over AWESOME.

  • @fabriciohernandezlopez849
    @fabriciohernandezlopez849 5 місяців тому

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

  • @Sparky_D
    @Sparky_D 11 місяців тому +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 місяців тому

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

  • @udoburmester5733
    @udoburmester5733 11 місяців тому

    Great and fascinating work, no artwork!

  • @viorsa8200
    @viorsa8200 11 місяців тому

    Gran trabajo maestro, pero es un vídeo muy largo, lo ideal serian dos partes de 15 minutos máximo, gracias por compartir sus conocimientos y experiencias, un cordial saludo y por supuesto un merecido like desde Narón (Galicia)👍🤓😜

  • @justtim9767
    @justtim9767 5 місяців тому

    Beautiful.

  • @Ricardo-Royco
    @Ricardo-Royco 11 місяців тому

    Tres tres beau boulot ! Félicitations

  • @BRICOLAJELISTO
    @BRICOLAJELISTO 11 місяців тому +1

    Muy buen trabajo y excelente acabado.

  • @thomasstreich6564
    @thomasstreich6564 10 місяців тому

    Great restoration! Very nice piece of steel you have saved their. But one thing. Don't use brass on a knife if you want too use it. It is the first thing that will go unpleasant till time if you don't polish it regular. I Use titanium or stainless steal instead of Brass. But that is also that i like silver more than gold looks. But great save of a tool for cooks.

  • @warrenhunt5556
    @warrenhunt5556 11 місяців тому

    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!

  • @user-qr7xz4dl4s
    @user-qr7xz4dl4s 10 місяців тому

    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。

  • @kleckerklotz9620
    @kleckerklotz9620 11 місяців тому

    Unconventional, yet creative way. I like it.

  • @andrzejporeda7281
    @andrzejporeda7281 10 місяців тому +1

    Przepiękne jest ten cały japoński nuż odrestaurowany pozdrawiam twórcę tego filmiku serdecznie 👍👍👍👍👍

  • @kalaipaa
    @kalaipaa 5 місяців тому

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

  • @renatoferreiralima6931
    @renatoferreiralima6931 11 місяців тому +1

    Amazing!!!!

  • @user-qu9es7vt9h
    @user-qu9es7vt9h 10 місяців тому

    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。👍👏

  • @lexvane3494
    @lexvane3494 11 місяців тому

    again, very nice craftsmenship

  • @tasmedic
    @tasmedic 10 місяців тому +1

    Nice to have the sandblasting gear, saves a lot of time. I'd have set out with coarse sandpaper to get all the crap off this, then to my ATOMO 100 diamond stone, to take out the large pits on the bevel and re profile the knife. I wouldn't bother much with the steel which is not part of the working bevel and edge. Diamond stones like the Atomo just love refurbishing knives like this, and they save many hours messing about with standard stones. It shouldn't take a month to do this work.

  • @plunder1956
    @plunder1956 11 місяців тому +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 місяців тому +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

  • @WGARES
    @WGARES 11 місяців тому +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 місяців тому +8

      It had a brand but he ground it off.

    • @sittingstill3578
      @sittingstill3578 11 місяців тому +7

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

    • @xMiRox
      @xMiRox 7 місяців тому +4

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

    • @raymondengineering8951
      @raymondengineering8951 4 місяці тому +4

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

  • @jacobenard2188
    @jacobenard2188 21 день тому

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

  • @joso5554
    @joso5554 2 місяці тому

    Beautiful result especially knowing the starting point. The quality of this blade definitely deserved the effort to bring it back to life.
    A couple remarks, though :
    - the handle seems slightly too long and would, in my opinion, be nicer with a darker finish.
    - the knife should not be mirror polished on the flat side nor especially on the bevel, as these are areas where the sharpening takes place. Maintaining the knife sharpness will lead to destroying this mirror finish anyway. If you intend to use the knife.

  • @WimVeen
    @WimVeen 9 місяців тому

    You did a great job. Looks wonderful!

  • @roromanche7767
    @roromanche7767 22 дні тому

    Très beau travail !

  • @johnnydingo8680
    @johnnydingo8680 11 місяців тому

    Nicely sharpened 😊👍

  • @user-qy8dl2ev9s
    @user-qy8dl2ev9s 26 днів тому

    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  26 днів тому

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

  • @Inventor102usa
    @Inventor102usa 2 місяці тому

    Knife sharpener master. Thank you ☺☺☺

  • @juanluisruizalconero7586
    @juanluisruizalconero7586 10 місяців тому

    Wau,😮 autentico espejo❤, pero se borraron las letras originales del creador del cuchillo, asi todo es posible que invirtieras mas de un mes en dejar el deba tan impecable.
    Un trabajo impresionante🎉🎉🎉❤

  • @leslienixon9274
    @leslienixon9274 11 місяців тому

    Beautiful!

  • @1954JDR
    @1954JDR 11 місяців тому

    Beautiful knife.👍👍

  • @user-jp9js9th8o
    @user-jp9js9th8o 10 місяців тому

    nice work...

  • @kevintoye952
    @kevintoye952 11 місяців тому +1

    Great job.