Off centered grind cause?

Discussion in 'General Knife Discussion' started by rtz, Feb 5, 2021.

  1. rtz

    rtz Basic Member Basic Member

    61
    Mar 19, 2010
    [​IMG] What is off at the factory to cause this? It happens so often; I don't think the factory even knows.
     
  2. MarkN86

    MarkN86

    533
    Sep 3, 2012
    I hear they only sharpen one side of the 4007 now, so they probably leave the cutting edge side longer so that when an edge is put on it it's closer to being symmetrical. Just an educated guess.

    Personally it's not far enough off to bother me, but it might be irritating to you. If it's a problem just sharpen until it's even.
     
    Silent H likes this.
  3. The_Knife_Man

    The_Knife_Man

    May 30, 2014
    That would bug the ever loving crap outta me. To each their own.
     
  4. killgar

    killgar

    Sep 24, 2002
    Is that a Kershaw Secret Agent boot knife? Because if it is, on the Kershaw website it says they are single-edge.

    They must have changed at some point. My K Secret Agent is double-edged, but I bought it several years ago.

    If the blades are still as thin as they used to be, and ground as fine as they used to be, then it shouldn't be difficult to sharpen the other edge.
     
  5. jideta

    jideta Gold Member Gold Member

    Apr 8, 2020
    made on Friday at 4:55pm
     
  6. rtz

    rtz Basic Member Basic Member

    61
    Mar 19, 2010
    I was wondering if the fixture was off in the factory or when they flip the blade over; the modified edge throws off the angle for the other side. If it was setup right; it could never happen.
     
  7. rtz

    rtz Basic Member Basic Member

    61
    Mar 19, 2010
    I wasn't referring to the sharpened edge. The center line down the side of the knife. On the CS Counter Tac 1, it's centered. The Kershaw Secret Agent is way off center. I have seen this before with other knives.
    [​IMG]
     
  8. Richard338

    Richard338 Gold Member Gold Member

    May 3, 2005
    In your first picture it actually looks worse at the ricasso, it's just more obvious at the tip.
    I wouldn't buy it or keep it.
     
  9. Silent H

    Silent H

    Feb 1, 2018
    Pretty sure this is the reason, I've seen it on a few other knives. Typically, it would look ok on one side and like OP's pic on the other, because the bevels weren't even.

    OP, what does the other side look like?
     
  10. rtz

    rtz Basic Member Basic Member

    61
    Mar 19, 2010
    The top pic is one side and the next pic is the other side.

    The center line veers off to the side.
     
  11. Danke42

    Danke42

    Feb 10, 2015
    That's because they have these horrible things called "human beings" grinding those. If you take them out of the loop everything gets better.
     
    Lee D, Airborne 1 and jbmonkey like this.
  12. Snacktime

    Snacktime Basic Member Basic Member

    117
    Aug 18, 2019
    Pretty easy to miss grind an edge only have to be off a few thousands on a set up or have some slop in cnc.

    $30 knife, can't be to picky... Or it will cost twice as much.
     
    Kraken82 likes this.
  13. DocJD

    DocJD

    Jan 29, 2016
    It's a small stabby dagger . It will still "keel" ! :rolleyes:

    But if it offends you , I'd return it for refund and get a Cold Steel Drop Forged Boot Knife .

    Much stronger , tougher , better knife and maybe even symmetrical primary grind .

    I never understood the purpose of a single edged dagger . You sacrifice slicing power for that DE , but then chicken out ? o_O:thumbsdown::thumbsdown:
     
  14. rtz

    rtz Basic Member Basic Member

    61
    Mar 19, 2010
    I don't mind it as it's still functional. I just wish they'd correct it at the factory.
     
    DocJD likes this.
  15. Tony_A

    Tony_A

    608
    Sep 14, 2004
    Weird. I just sent a knife back for the same reason. This was on a $200 knife:[​IMG]
     
    willard0341 likes this.
  16. Kraken82

    Kraken82

    28
    Jun 11, 2020
    Mass produced knives done by a worker getting paid peanuts. I doubt they worry if it's exactly centred just trying to get as many done as possible.
     
  17. rtz

    rtz Basic Member Basic Member

    61
    Mar 19, 2010
    I know this is apples to oranges. But in this old video, watch it at double speed so it plays quicker; notice no humans touch the product and there are some grinding operations done. I just thought the initial large grind to give the blade it's contour was done in a jig or a fixture so it couldn't move.

     
  18. kamagong

    kamagong Gold Member Gold Member

    Jan 13, 2001
    A symmetrical dagger is probably the hardest blade shape to grind.
     

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