Failed the Whack Test?

I was at MegaSports in Plainfield, Il the other day...I thought I had died and gone to heaven...I have NEVER seen so many rifles, shotguns, pistols and KNIVES in one place...
I really liked the BOA but I don't like the black aluminum scales...G-10 and I would have jumped...I held the Steven Segal...if it didn't have his name on it (jus' kiddin, Steven) the Stingray overlay felt like plastic but I have never felt a blade sweep out with so little friction...smooth pursuit...check that one out and at $99bux it was almost bought!
I GOTTA STOP BUYING KNIVES (this doesn't help):D :rolleyes: :eek: :cool: :p
 
My opinion is that any liner locking knife should pass the spine whack test. Do I think the knife will be used like that. In all likely hood not. But better to be safe than sorry. I have a Vtech knife that I am enamoured with of late. That and a Blink are what I have beencarrying regular like. Problem with the Vtech is that it fails miserably the whack test out towards the tip. Mid way down the spine you can beat it with a hammer and it won't budge one iota. Reason as near I can figure it is that the blade picks up more vibration out towards the tip than down towards the middle of the spine. The knife is just plain pleasent to carry. Unobtrusive, lite weight in the pocket, a very secure pocket clip, no sharp edges anywhere on it except the edge and I like the knurrling of the handle slabs. Oh yea opens like my old AFCK and S2k by which all other knives are judged by me for smoothness.

There are a couple of techniques I have learned through the years regarding liner locks and adjustments. First you can tighten the pivot a bit to see if that helps. It sometimes does. Next you can disassemble the knife and rebend the liner itself, but this is a tricky situation especially on upper end production knives. Thirdly and again this is technique sensitive is to slightly score with a small file or coarse emery cloth the flat of the blade and the liner lock itself. Sometimes this helps as it just gives a bit of purchase to the liner and creates kind of like a friction effect. I have said this a hundred times in other posts probably but the BEST bar none production liner lock made today I have found on my S2K. Keep'em sharp
 
I agree with Joe. If the lock is engineered well, proper materials selected and built to spec, it should not fail. I also agree with Joe that testing is good and we encouraqge testing. A light tap will be a good indicator if there is a problem. Pobody's nerfect. Most manufacturers would certainly take care of their customer. Better to easily know and solve the problem before blood.

As a manufacturer that is closely involved with End Line Users (ELUs), We feel that spine wacking is a necessary part of QC, it is very embarrassing to "bite the hand that feeds you".

Cuts are so inconvenient.

sal
 
I want to do the whack test with my new Avalanche, but I have never had a folder so I don't know, can anything be damaged by the whack test?
Thanks,
Richard, who loves the fact that he can flip it out so fast he can't see it. Not only is it really convenient, but how cool is that!!! "Have a box there...I can open it for you" (other person) "WOW"
 
Try using a slip joint for defense and stab a hard target like a breastbone. Tell me the boy scout knife would not collapse on your fingers.

I carry a slip joint SAK and use it with no problems. I would not, however, be inclined to use it for defensive needs as stabbing something with it [ not in it's job description ] would likely have me fingerless. Good training has not much to do with a slip joint, it's common sense without a lock it is prone to collapse if used in a manner that allows the blade to close on it's arc.

Les Robertson: My knives are ready to be used the way they were intended, to stab, to slash, to push cut, etc. The knives I carry are made with defensive purposes in mind. I'm using them the way they were intended [ and thats why they have locks ]. If I am to use it as intended, it should not unlock until I want it to manually. Hence, the complaint from others about the folder failing the spinewhack test.

On my lockbacks, I don't test them like this. On the linerlocks I do as they have known issues with that type of lock.

Brownie
 
I just did an ol' spine whacking to the back of my EDC a large plain sebenza.
The lock seemed to move over to the right a little each time I hit it until it was all the way over against the other scale. I don't think I'll have a problem with this one.

Jeff
 
I always thought this "spine whack" thing was a little wierd but "don't knock (whack?) it till you try it" I always say. I've done a mini AFCK, Gerber AR 3.00, CRKT Mirage and Schrade Pocket Beast.
They all passed including a Gerber E-Z-out that I threw in to test a lockback, with one glaring exeption- the AFCK! I can't believe it. I have to get my brain around the idea that my Pocket beast POS is more secure than...I wish I'd never read this thread. :(
 
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