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Does Busse offer a spa/sharpening service?

Discussion in 'Busse Combat Knives' started by OilMan, Apr 10, 2018.

  1. OilMan

    OilMan Gold Member Gold Member

    May 6, 2004
    Ended up fixing most of it on my WorkSharp. The dings were pretty deep though so it's razor sharp with tiny serrations up front for now. :)
     
    tuica likes this.
  2. Will York

    Will York Platinum Member Platinum Member

    Jan 21, 2000
    For a user, that’s the perfect way to handle it. No loss of cutting function—if anything a small temporary enhancement.;) And minimal loss of steel/edge life. Win-Win.

    Plus, it was a quick and easy fix that let’s you know you can freely hack and beat the holy bejesus out of it and touch it up again from time-to-time as needed. Definitely an example of proper Busse maintenance protocol. :thumbsup:
     
    Last edited: Apr 14, 2018
  3. Cobalt

    Cobalt

    Dec 23, 1998
    A 3000-4000 grit finish will keep most dings from happening on a 20 dps blade. I go through knotts with my 15dps SHBM's at 4000 grit and no dings at all. Razor sharp afterwards. I destroyed my turkey, a ceramic dish and a cutting board with it. No edge damage.
     
    luethge and Murman like this.
  4. nandok

    nandok Gold Member Gold Member

    246
    Jan 26, 2012
    Thanksgiving rampage?
     
    Cobalt likes this.
  5. Will York

    Will York Platinum Member Platinum Member

    Jan 21, 2000
    Need pics. :thumbsup::D
     
    nandok likes this.
  6. Will York

    Will York Platinum Member Platinum Member

    Jan 21, 2000
    Hey Cobalt—

    What part do you think a high polish plays in reducing edge damage?
     
    OilMan and Still Voracious like this.
  7. Munroc

    Munroc

    33
    Sep 20, 2017
    Sounds like I will need to get a worksharp
     
  8. Still Voracious

    Still Voracious INFIDEL

    228
    Sep 7, 2016
    I’d like to hear Cobalt’s reasoning as well;if I had to guess I would say it has to do with the microserrations left on a coarser edge acting as tiny inclusions wherein to start a “tear” which can lead to those dings.
     
  9. resinguy

    resinguy Gold Member Gold Member

    Feb 19, 2006
    4000 grit is pretty fine. Not exactly microserrations.

    Cobalt, what is your technique? Hand sharpening on stones, stropping with wet/dry sandpaper, or some assisted device?
     
  10. u812

    u812 KnifeMaker / Craftsman / Service Provider Knifemaker / Craftsman / Service Provider

    Mar 15, 2002
    I would find one of the guys here offering Wicked Edge sharpening services. You will get a killer polished edge.
     
  11. Cobalt

    Cobalt

    Dec 23, 1998
    This is all just my opinion. If you look at an edge under extreme magnification you will see that coarser finishes do indeed look like tiny serrations, while these tiny serrations help in cutting, they are also tiny little stress risers that can cause larger pieces to break off, and, thus, what you see which is chipping and denting in INFI's case. polishing the edge removes those tiny little stress risers and keeps the edge running longer. You actually loose some cutting ability on certain materials but in my opinion you gain some edge strength. You don't have to go super high in grit to get a cleaner edge. I think 1500 to 2000 would be fine as well, certainly better than 400, 600. Some people go to 6000 to 8000. Who knows maybe it is all just my imagination, lol.

    As for sharpening, once I have an edge reprofiled to how I like it, I maintain it on a 4000 grit stone and some super high grit sandpapers, depending on the type of edge. The reprofiling part can be a pita though. I have done it myself many times and have also had it done for me many times when I am lazy about doing it. Once you have an edge you like, higher grits are what you want to use because you do not want to remove a lot of metal all the time. lower grits remove tons of metal. no need for that. I am sure I am preaching to the quire on this though. I am by no means an expert sharpener, and I have seen what people on this forum can do and the fine polished edges I have seen are impressive. Better than mine.
     
  12. Cobalt

    Cobalt

    Dec 23, 1998
    had done on the better knives and mechanically done on cheaper ones, lol. I love automotive paint sand paper. The black stuff and you can get some really high grits and you can also place it on mouse pads for the slight convex edges.
     
  13. u812

    u812 KnifeMaker / Craftsman / Service Provider Knifemaker / Craftsman / Service Provider

    Mar 15, 2002
    On my folders I have noticed that a mirror edge lasts a long time but does not cut some materials as well as say stopping at 1000 or 1200 grit. Think you are on the something.
     
  14. u812

    u812 KnifeMaker / Craftsman / Service Provider Knifemaker / Craftsman / Service Provider

    Mar 15, 2002
    I have stones up to 1000 for my wicked edge and 1mc and .5mc strops. I use the auto wet dry sandpaper wrapped around the 1000 grit stone in 1200,1500,2000 and 2500 for the in between sharpening. The edge is just about a mirror at the 2500 grit. I saw some 15000 and 30000 grit last week that I may try but don't think it would make that much difference between the 2500 and the stropping.
    This is the edge after going from 2500 to the diamond paste strops.
    [​IMG]
     
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  15. Will York

    Will York Platinum Member Platinum Member

    Jan 21, 2000
    Thanks Cobalt—interesting theory. I know when Jim Ankerson changed from polished edges to 400 grit in his extensive testing on rope in the Knife Reveiws and Testing forum, he experienced significantly longer edge life. That was also Phil Wilson’s predicted result, which was why Jim tried it. But that’s slicing action—not chopping, which is obviously more likely to induce edge fracturing. I certainly credit you with at least as much experience chopping as anyone else here, so glad to have your opinion. :thumbsup:
     
    Last edited: Apr 15, 2018
    Hard Knocks and Cobalt like this.
  16. tuica

    tuica Gold Member Gold Member

    Jul 30, 2013
    Thanks all. Interesting and useful information.
     
  17. Cobalt

    Cobalt

    Dec 23, 1998
    What Ankerson and Phil Wilson found is right. At rough finish edge will cut longer because micro pieces of the edge keep coming off creating fresh ones. Sometimes it even appears that the edge resharpens itself with use. In order for that to work you have to have a thin edge. Which is why I really liked the old assymetrical edge. It was very thin since it was basically a convexed chisel grind edge. For chopping, which is what I do mostly, a polished edge is better, imo. A compromise between the two would be 800 to 1200 grit. I am sure you can find what the edge of a knife looks like on different grit levels.
     
    Will York likes this.
  18. Cobalt

    Cobalt

    Dec 23, 1998
    [​IMG]

    The above is a typical factory edge. The rough edge acts like a saw and cuts well. It also slowly breaks off as you cut. Compare that to the 4000 grit finish below at same magnification. Just found these pics on the net.
    [​IMG]
     
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  19. RobStanley

    RobStanley

    Dec 27, 2006
    Good old hand shaprening on a 600grit diamond stone, followed by a stropping on a piece of leather with automotive buffing compound keeps mine razor blade sharp. Sometimes a rub on a butcher's polishing steel to take it that little bit further. As has been said by Cobalt and others, a slightly coarser edge remains super slicey for a very long time. Especially with general cutting like meat etc. I have found a nicely poilshed edge lasts longer on harder materials like cutting up boxes, chopping wood etc.

    I have an INFI Ratmandu that has an awesome polished convex edge on it that goes and goes and goes. I recently sliced up about 40 heavy cardboard boxes with it, and it still shaves nicely.
     
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