Masamoto Restoration

Discussion in 'The Kitchen Knife' started by musicman980, Jan 12, 2020.

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  1. Jan 12, 2020 #1

    musicman980

    musicman980

    musicman980

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    This vintage Masamoto came off the auction site at a price I couldn’t refuse, but it needed a little work. This might have started as a gyuto, but I saw suji potential. The pits were deep, the tang and handle were in rough shape. It looks like a Tsukiji Masamoto, but notice how it doesn’t have the tsukiji ( 築 ) stamp?


    Masamoto 1-2.png
    Masamoto 7-2.png
     
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  2. Jan 12, 2020 #2

    musicman980

    musicman980

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    I cut through the brass pins and chiseled off the handle. Most of the pitting was ground off on the course belt, but it still has plenty of character.

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    I’m not really into western style handles, so I performed wa handle surgery on it.

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  3. Jan 12, 2020 #3

    musicman980

    musicman980

    musicman980

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    Here it is polished up. I didn’t go too high with it, maybe 800 grit. I made an ebony and nickel spacer handle for it. The grind is an extreme right hand bias, just as I found it. The final dimensions are 255mm long and 45mm tall.

    9459CEFF-8BFC-4D4A-9424-CBB34E1E28D2.jpeg
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    E759BAF1-7BC1-45F0-BDA6-7182A2777814.jpeg
     
  4. Jan 12, 2020 #4

    dafox

    dafox

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    Carl Kotte likes this.
  5. Jan 12, 2020 #5

    Garner Harrison

    Garner Harrison

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    Damn, this looks AMAZING! :D
     
  6. Jan 12, 2020 #6

    SilverSwarfer

    SilverSwarfer

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    Such a cool project!

    I’d be interested to hear how the steel performs.
     
  7. Jan 12, 2020 #7

    Henry

    Henry

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  8. Jan 12, 2020 #8

    labor of love

    labor of love

    labor of love

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    You should do this sorta thing more often. If I saw the finished product on eBay I’d definitely pay a decent amount for it.
     
    Last edited: Jan 12, 2020
  9. Jan 12, 2020 #9

    Carl Kotte

    Carl Kotte

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    Wow, this is really cool! Well done! [emoji1305]
     
  10. Jan 12, 2020 #10

    lemeneid

    lemeneid

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    Nicely done! Makes me want to buy a cheapass beater to attempt a restoration project by myself!
     
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  11. Jan 12, 2020 #11

    daddy yo yo

    daddy yo yo

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    Congrats!

    I also think this was a gyuto in an earlier life... Just amazing how someone really wears it down...

    Have fun!
     
  12. Jan 12, 2020 #12

    da_mich*

    da_mich*

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    It´s very nice now :)
     
  13. Jan 12, 2020 #13

    TRPV4

    TRPV4

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    holy **** amazing
     
  14. Jan 13, 2020 #14

    musicman980

    musicman980

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    Thanks fellas, restorations are my thing. I can’t test the steel out for another few months, but if I remember I’ll check in.

    Did you know that the outer circle of pre-2012 Canadian toonies are 100% nickel? ;)
     
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  15. Jan 13, 2020 #15

    TRPV4

    TRPV4

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    did you fix the geometry as well or did that have to suffer
     
  16. Jan 13, 2020 #16

    musicman980

    musicman980

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    The only hints about the geometry I took from it were from the regrinding itself. Putting the right side flat on the belt ground away the middle mass of the knife. A hair's width rock backwards allowed contact with the area just below the spine the entire way down, and a hair's width rock forward revealed a tiny and gentle convexing until the defined one sided bevel. The left side had much less convexing, more like the left side of a honesuki.

    I tried to be even with my material removal, and when polishing on the stones at the very end of the restoration the blade behaved the same way. So it now still has that gently convexing right side, and much flatter left side, but thinner.
     
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  17. Jan 13, 2020 #17

    krstf

    krstf

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    Nice work!
    In the before pictures it looks like the tip is bent sideways - how did you correct that? Just bending?
     
  18. Jan 13, 2020 #18

    musicman980

    musicman980

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    Thanks krstf, actually that tip was straight, just angled downward like a beak from odd sharpening I guess. I reground the tip and lost about 5mm.
     
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  19. Jan 13, 2020 #19

    musicman980

    musicman980

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    Does anyone know how old this knife is? And the stamp on the back, is that just a generic "high quality steel" stamp or something more specific?
     
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  20. Jan 20, 2020 #20

    Danzo

    Danzo

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    Looks great! Looks like the ancient suji that the old sushi chef uses at my local spot.
     
  21. Jan 20, 2020 #21

    Gregmega

    Gregmega

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    ed3b17c87359c2c485faebacda76faed.jpg camphoto_1804928587.jpg 0E930FA3-B256-4B25-B21D-F9506271EA6A.jpg

    Vintage 70’s western rehab from last summer. From Khashy (magic hands) to Graydon (handle) to me (saya), little bit of all of us in this one. I do love a good vintage rehab. This one is a 330 gyuto. Blade still needs to be cleaned but the geometry and profile are dead on.
     
  22. Jan 22, 2020 #22

    musicman980

    musicman980

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    That one is also missing the Tsukiji stamp, so it may be from the same time period. Thanks for posting.
     

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