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  1. #1
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    Yesterday I received

    a set of 3M polishing paper. 1,2,3,9,15,30 microns.
    I'm excited, are you?


  2. #2
    Riding Heaven's Highways on the grand tour ModoVincere's Avatar
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    8,000 grit?
    Holy crap!
    1 bronze, 0 silver, 1 gold

  3. #3
    Cool Beans MangoPumpkin's Avatar
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    Can you take skin off w/ that?
    I've got your restraining order right here. [grabs crotch] Restrain this!

  4. #4
    Tiocfáidh ár Lá jfmckenna's Avatar
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    3M is the best no doubt. I need to get some 800 and 1200 to finish up a project this weekend but I cannot buy locally. So I'll probably just settle for some of the cheaper wet/dry stuff I might be able to get at the True Value Hardware store.
    If you don't talk to your cat about catnip, who will? =^.^=

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    It that polishing cloth appropriate for knob polishing?

    doorknob.jpg

  6. #6
    old and in the way grueling's Avatar
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    Quote Originally Posted by ModoVincere View Post
    8,000 grit?
    Holy crap!
    +1

  7. #7
    Senior Member
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    Quote Originally Posted by ModoVincere View Post
    8,000 grit?
    Holy crap!



    I have plenty of that. But we use it at work for polishing Fiber Optic connections. That's the course grade for that job.

    Not sure what grit the .3 micron is.

  8. #8
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    I normally go to 600 grit on my knife handles. I have some black micarta slabs that I want to look like this, so I will take it to 8,000


  9. #9
    Senior Member himespau's Avatar
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    Quote Originally Posted by chris..... View Post
    I normally go to 600 grit on my knife handles. I have some black micarta slabs that I want to look like this, so I will take it to 8,000


    Don't you mean you're taking it "Ova 9000"?

    Last edited by himespau; 06-15-12 at 04:21 PM.
    Punctuation is important. It's the difference between "I helped my uncle, Jack, off a horse" and "I helped my uncle Jack off a horse"


  10. #10
    Bicycle Repair Man !!! Sixty Fiver's Avatar
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    I have used even finer lapping film than this... but 8000 is pretty fine.

  11. #11
    Bicycle Repair Man !!! Sixty Fiver's Avatar
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    Quote Originally Posted by sevenmag View Post


    I have plenty of that. But we use it at work for polishing Fiber Optic connections. That's the course grade for that job.

    Not sure what grit the .3 micron is.
    .3 has an equivalent of about 15,000

  12. #12
    You Know!? For Kids! jsharr's Avatar
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    Quote Originally Posted by sevenmag View Post


    I have plenty of that. But we use it at work for polishing Fiber Optic connections. That's the course grade for that job.

    Not sure what grit the .3 micron is.
    Aproximately 24000 grit if it is a liner relationship I would think.
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  13. #13
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    Quote Originally Posted by chris..... View Post
    I normally go to 600 grit on my knife handles. I have some black micarta slabs that I want to look like this, so I will take it to 8,000

    Wow! That's amazing. Seriously.

    Couch

  14. #14
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    Quote Originally Posted by jsharr View Post
    Aproximately 24000 grit if it is a liner relationship I would think.
    I don't think it's linear. I have some 0.5 micron 3M polishing film from Lee Valley...and they claim 9000 grit on that. I don't bother using it...2000 grit puts a nice micro bevel on my chisels and knives. Any finer edge, and you just lose it too quickly for the effort to be worth it.

  15. #15
    Lost Again gitarzan's Avatar
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    Quote Originally Posted by Iron Parr8 View Post
    It that polishing cloth appropriate for knob polishing?

    doorknob.jpg
    I figured you were already the subject matter expert on that topic.
    Quote Originally Posted by Jseis View Post
    Is a ukulele player in a mandolin town and banned from all bars by the chief of police unless he leaves his strings and gravy at the front door.

  16. #16
    derailleurs are overrated bigbenaugust's Avatar
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    Once upon a time, I knew the equation for going from grit to particle size... would have been metallography class in '97.

    Seems to me we never used finer than 1200 grit on our samples.
    --Ben
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