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S90V... Toothy or polished?

Discussion in 'Spyderco' started by asmith001, Aug 5, 2014.

  1. asmith001


    Oct 8, 2012
    I'm sharpening my S90V Military. I was curious to know what you guys prefer for S90V... A toothy edge or more of a polished edge? I've had a near polished edge at 30° with a 40° micro bevel, and was very pleased with it. I was just wondering how it would perform if I change it up. I've just re-sharpened it with a diamond stone at 30° without a micro bevel. Before I proceed, I wanted to get some opinions. Should I work toward a polished edge, or leave it toothy? Should I leave it at 30°, or reapply a micro bevel? Any experience or opinions are welcome.

  2. Invective


    Jul 7, 2012
    Leave it toothy. Let those vanadium carbides do their thing!

    As for the micro-bevel, it depends on what you're going to be doing with it. If it's just for opening letters, cutting tape and light food prep I'd say leave it at 30. If you're going to be using it for rougher things then put the 40 on.

    I keep a 30° bevel with a 40° micro on my S90V PM2 and no complains yet. When it dulls I just swipe it on the medium Sharpmaker rods and it touches back up within a few passes and it's back to shaving sharp.
  3. Jastab


    Jan 31, 2013
    Why not just try it and see? If it's doesn't work out, just re sharpen to your liking....
  4. Chris "Anagarika"

    Chris "Anagarika"

    Mar 7, 2001
  5. KNaB


    Oct 18, 2008
    Toothy. I only take mine to 500 grit on shapton glass and it cuts and cuts and cuts.
  6. RevDevil


    Nov 9, 2009
    Agree, I go to 400 grit and it cuts great.
  7. asmith001


    Oct 8, 2012
    That was my plan, to an extent. But I don't want to waste my time if it doesn't seem logical. This S90V is a beast on the sharpmaker... It takes a while, lol.

    Thanks for the info, guys. I think I'll stop on the medium stones and reapply a micro bevel again.
  8. Raymond3

    Raymond3 Gold Member Gold Member

    Jan 18, 2006
    Journey in sharpening. I have gone that route too. My Manix2XL S90v also cut great with the 400 grit Edge Pro stone (new version). (28degree inclusive, with 38 degree microbevel) Great. Why go further? Made a note in my bound knife sharpening journal: leave at 400, great slicer, and shaves hair nicely, push cuts phone book paper easily. But, being a nut, I thought, let's try 600. Then, 800, oh well, we are close, how about 1000? etc. Now, after I touch it up with the 10,000 Chosera, i not comfortable unless I strop it as well. (Is this the definition of an addiction?) The edge is pretty, and it does last a very long time though.
  9. Kershaws


    Aug 3, 2013
    As other mentioned I leave it reasonably toothy at 500gr then touch it up on some ultra fine ceramic, I find it hard to strop so I have to re-do the edge every time it gets dull, i'm sure this problem is on my part
  10. kwackster


    Dec 23, 2005
    Imo S90V steel can handle both a toothy edge & a polished edge very well and for quite a long time.
    For a toothy edge i just use silicon carbide abrasives (Tormek SB250 Black Silicon stone and/or a Paper Wheel with 220 grit SiC), and for a polished edge i use various diamond compounds on Paper Wheels.
  11. Surfingringo

    Surfingringo Gold Member Gold Member

    May 25, 2013
    Jeez, this exactly! :rolleyes: I try like hell to leave a toothy edge on my cts-204p paramilitary, but next thing you know I'll be comparing it to something in superblue and I'll decide it's not quite "sharp enough". The problem is that it is NOT superblue and doesn't sharpen like superblue. The bottom line is that I think this steel excels at a low grit finish but I am slightly insane so I have a hard time leaving it there.
  12. The Mastiff

    The Mastiff Gold Member Gold Member

    Apr 21, 2006
    S90V runs from 200-400 grit at my house depending on what I'm doing. It will cut well even with a 8k grit polish just to be clear. Those super steels with that much vanadium like to cut, and cut. I do like the more aggressive, toothy edges though. Some don't really need the help though and S90V is one. I just like to do it.
  13. Popsickle


    Jul 25, 2010
  14. whp


    Apr 26, 2009
    I m leaving my edges at 6oo grit and they are very sharp with good edge retention with that finish.

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