ZT 0560 Manufacturing Variations?

K

knivesnsuch

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May 3, 2004
Messages
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I received my 0560 a few days ago from New Graham Knives so I think it is real. However, I noticed that my knife has the following deviations from the ones I have seen in pics and reviews: 1) the pivot screw head is round and not hex. 2) the back end of the lockbar does not have the relief hole drilled into it. I am concerned that it will develop a crack in the titanium scale over time. The s/n of the knife is 2529. Are these design changes or does my knife have manufacturing defects?

Thanks,
Joe

http://www.flickr.com/photos/89072425@N02/8116086058/

http://www.flickr.com/photos/89072425@N02/8116075385/
 
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If you received it from New Graham then in my mind there is little question to the authenticity. I purchased mine from them. Your pictures don't seem to work for me so I can't comment on what you are seeing as design changes. I wouldn't worry about the titanium cracking though. Do you have any functional issues with it currently? I think you are just seeing some of the design changes and just need reassurances everything is okay having plunked down a good chunk of change on a knife. Nothing wrong with that but from what you describe I think everything is fine. Would love to see pics though.
 
I do not doubt the authenticity of the knife. The folks at New Graham have located a version with the relief hole in the lockbar and hex head pivot screw and I am sending this one back. I have tried fixing the pics and they should work now.
 
I've never seen one with a relief hole in the bottom of the lock bar. They're usually up at the top near the pivot. And it's hard to see in the pictures but it doesn't look completely round. I don't see anything wrong with that knife.
 
I've seen these differences on some YT vids, etc. Another difference includes the tone/shade on the Ti side. I don't think these changes make any differences in form, function and performance. If anything, it just adds some cosmetic flavor which I'm all for options anyways.
 
The head of the pivot screw is supposed to be round as it is a torx screw. The picture you show of the pivot is the back side and it has to be hex or it would just keep spinning when you tightened it. The relief hole I have seen done a few different ways. The only two zt's out there with hex nuts on the pivot are the 0200 and the 030x's.
 
It turns out that there are two versions of this knife out there: 1) relief hole in lockbar and hex head on titanium side of pivot screw 2)no relief hole on lockbar and round head on titanium side of pivot screw. I have the second configuration. Anne at New Graham has six in the second configuration and one in the first configuration. She offered to send me another knife but I decided that since I know that this is indeed a design change and not a manufacturing defect, I will keep the one I have. BTW, the lockup and deployment are excellent. The CS at New Graham is great!
 
Take a closer look at the head on the pivot. You will see that it does, in fact, have six sides. There is a circular chamfer on the top which makes it appear to be circular, but the head is hex shaped. The other thing that makes it hard to see is that we radius the six corners - sometimes that radius is a bit large than others.

As to the lockbar, you need not worry about it cracking. The slot is laser cut - we do make a milled slot at the back end of the lockbar cut, but it is more for cosmetic reasons than to eliminate stress.
 
I had to use a loop to see the sides on the pivot. I wouldn't have even questioned the lockbar if I hadn't seen the other variation.

Thanks,
Joe
 
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