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How do you round the spine of a knife?
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Thread: How do you round the spine of a knife?

  1. #1

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    How do you round the spine of a knife?

    Can anyone lead me in the right direction as to some steps and pointers for rounding the spine of a knife.

  2. #2
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    i use a file and sandpaper while the knife is sandwiched between cartons and wood in a vice to keep it stable.

  3. #3
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    Would this be the same operation for the choil?

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    yep. you just clamp on it vertically closer inside the vise so you don't bend it too badly. lol.

    you make strips of sand paper and make a shoe shining motion around the area you're rounding down and just pull.

    stainless is a pain to round down!!!!! lol.

  5. #5
    Senior Member chinacats's Avatar
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    I was recently told mill file for spine and saw file for choil...then as Franz said.
    one man gathers what another man spills...

  6. #6
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    I can't recommend using a file on Japanese knife... the file would only be a couple of RHC points above the blade so it won't cut if it's slightly dull, and a sharp file will be quickly dulled. Stick with sandpaper. Stick a 1/4 width strip of duct tape on the back of the paper so it doesn't tear and pretend you're polishing shoes. You will be done before you know it.

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    i just find it to go faster with a file. =D

    it was a cheap file so i don't mind wrecking it. i bought it just for that. =D

    thanks for the duck tape tip, i'll do just that next time.

  8. #8
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    if you don't have a vise available (like me), you can always secure the sandpaper and move the knife across the paper instead of vice versa.

    Like this:

    http://farm9.staticflickr.com/8460/8...64857e9b_c.jpg
    Remember: You're a unique individual...just like everybody else.

  9. #9
    Senior Member zitangy's Avatar
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    Quote Originally Posted by Zwiefel View Post
    if you don't have a vise available (like me), you can always secure the sandpaper and move the knife across the paper instead of vice versa.

    Like this:

    http://farm9.staticflickr.com/8460/8...64857e9b_c.jpg
    I do this on a 400grit on a sheet of sandpaper. Spine aroundd 80 degrees to teh sandpaper.

    Sometimes I do teh same thing to a stone that needs some serious flattening.. especially at the ends of the stones. Never in teh center of teh stones.

    Yes tehre are times when I bring the stones to the spine..

    A higher grit after it is smoothed if you want it shiny.

    As for the choil..i do it only with a small piece of sandpaper..



    have fun

    rgds
    d

  10. #10
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    I'm almost positive there's a previous thread about this where Dave recommended, IIRC, to first abrade the shoulders. I'm on my phone so I can't quickly search for the thread but I'm sure this has been discussed before.
    Michael
    "Don't you know who he is?"

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