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BHQ Excl. Lum Tanto?

Discussion in 'Spyderco' started by T.L.E. Sharp, Jan 8, 2018.

  1. bin31z


    Aug 15, 2008
    I was told by bladehq that spydero issued a recall on these due to QC issue. Anyways, sent the knife back but it doesn't seem like they can promise me a replacement. I'll use the money for a PM2 black/jade :D
  2. riz_aaroni

    riz_aaroni Gold Member Gold Member

    Feb 7, 2007
    That's the silver lining. After getting into knives again more recently, I feel like I missed a bunch of good sprint runs. Looking forward to the DLC PM2 in M4 for sure.
  3. Yonose


    Jul 10, 2017
    Really challenging knife to pull off, a thick laminated blade into a very narrow handle.
  4. jbmonkey

    jbmonkey Platinum Member Platinum Member

    Jun 9, 2011
    a recall on some, or all?

    yeah good idear.....on the new upcoming pm2.
  5. sharp_edge

    sharp_edge Gold Member Gold Member

    Jul 30, 2015
    What do you mean?
  6. Yonose


    Jul 10, 2017
    I mean that the challenge of engineering a large blade, especially one that is laminated, and thusly prone to “bend”(because of the very soft coating) at the pivot, and then get it to fall back into a very narrow space (ie handle) perfectly every time, is one that if done perfectly 100% of the time is one that I wouldn’t attempt for less than $3 or 4 hundred. Also, if I bought one I would have “fixed” it myself rather than send it back for a knife which I already have 12 of. But I didn’t, because of the handle material choice.

    I’m not knocking those who weren’t happy with theirs, as Spyderco usually delivers perfection. Did you guys notice if the area between the liners was a lot slimmer than most steel/g10 Spydies? I’m basing my statements off pics and descriptions, as I didn’t buy any.

    I hope some of those recalls end up as “employee bonuses” rather than off to the recycling pot.
    Last edited: Mar 25, 2018
  7. sharp_edge

    sharp_edge Gold Member Gold Member

    Jul 30, 2015
    OK I see what you meant. The core is very hard steel correct? So the soft out layer steel should not bend the blade easily. I do agree that the size of the blade plus the narrow space in between the scales will magnify even a slight off centering.
    Yonose likes this.
  8. Yonose


    Jul 10, 2017
    Not the cutting edge itself, but the outer layer, which is what I believe is contacting the area of the pivot is very soft(unless the blades are differentially hardened.) On my zdp/420 caly3.5, hap40/sus410 caly3, and my fallkniven s1, the outer layer of steel is so soft that keys can put dents in them. This soft steel could have caused a lot of the problems with centering if enough pressure was applied to other steel components.
    Now, the Lum in no way resembles the leaf shape of the caly’s so there’s a lot thicker steel further out on the liners, causing the issue to be much more pronounced. I’m no engineer, and a fix would have likely run up the cost, but a slightly wider steel “case”(or handle area) or different washers might have been a fix, but I’ll never know.
    I kinda wish that this blade’s handles could’ve been made from frn or titanium!!
    Last edited: Mar 25, 2018
    sharp_edge likes this.
  9. Danke42


    Feb 10, 2015
    So I had a look at mine vs. a bunch of knives and it's middle of the road for the thickness. Thicker than a Hap40 Delica or Sypdiechef but thinner than a Southard or a PM2.

    I suspect the blade centering issue has to do with the Hap40. Same issue as with the Maxamet PM2. Since the tool steel is very hard getting it to sit dead even is much more of a challenge than with a softer steel. The tool steel will be the "bones" of the knife with the cladding just the flesh.

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