25 lock rock...?

kwazyjuice said:
Ok I could have mislabeled the thread. It should say blade play...? Is what you're saying? When the knife is in the fully locked open position. I get forward and backwards blade play. With I would say 2-4 lbs of pressure. Nothing out of the ordinary when applying force when cutting, slicing, whittling, or what you may do with your knife.
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Sounds like lock rock as I understand it.
If the locked blade has play without any pressure on the blade, it is simply blade-play.

Whatever it is called, you felt like CRK should have a look at the knife.
The best production knife in the world should be mostly perfect and I'm sure CRK will return it in that condition. :)
 
Nullity said:
Sounds like lock rock as I understand it.
If the locked blade has play without any pressure on the blade, it is simply blade-play.

Whatever it is called, you felt like CRK should have a look at the knife.
The best production knife in the world should be mostly perfect and I'm sure CRK will return it in that condition. :)
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That's what I'm talking about!!
 
I just received a call from CRK and they are done and sending the knife back free of charge. Now I call that amazing customer service! Very nice and polite!! Top notch! I am very impressed with the whole experience so far!! I let you guys know when I get it in the mail.
 
Out of curiosity, did they indicate that the problem was in fact lock rock or what? I knew they would take care of you.
 
Well I was just so excited when I took the call. That I didn't inquire about the issue. She said that they were ready to ship the knife back at no charge. And wanted to verify my address was correct. I said thanks alot and that I appreciated their good work :)
 
Wow. That seems fast. Sounds like great service. Let us know the final results when you get it.
 
Every single Sebenza 25 and Umnumzaan (basically the same locking system) I've ever handled (probably close to 20) have been the same as you mention in the OP. If you force it hard enough, you can pretty much always get some play in a knife.
 
swimmerdude1127 said:
Every single Sebenza 25 and Umnumzaan (basically the same locking system) I've ever handled (probably close to 20) have been the same as you mention in the OP. If you force it hard enough, you can pretty much always get some play in a knife.
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Sure, all locks have some play, but not all locks suffer from lock-rock. My EDC SnG has lock-rock but I have stress tested the lock and it's good to go. A dependable lock is a dependable lock, regardless of lock-rock.

I am interested to see if the OP's standards match CRK's.
 
Well everyone! The package from CRK with my Sebenza 25 was sitting on my porch when I got home this afternoon. That was very exciting. I opened the box and the invoice stated that it was cleaned, tuned, sharpened, and the lockbar tension was reset. So I opened the box and pulled the 25 out. I examined it closely. It does look very clean, it is very sharp!! But I have tested the blade in the fully opened and locked position and there is still a slight amount of play. I believe i will just have to accept this and put it to use good use! This is something that is inherent with this design. Just wear it in.... :) And yes CRK does have some amazing customer service! Thanks Angela and Crystal for being so nice and polite on the phone with me. As well as this speedy process!
 
So how does the current blade movement compare to before you sent the knife off?


kwazyjuice said:
Well everyone! The package from CRK with my Sebenza 25 was sitting on my porch when I got home this afternoon. That was very exciting. I opened the box and the invoice stated that it was cleaned, tuned, sharpened, and the lockbar tension was reset. So I opened the box and pulled the 25 out. I examined it closely. It does look very clean, it is very sharp!! But I have tested the blade in the fully opened and locked position and there is still a slight amount of play. I believe i will just have to accept this and put it to use good use! This is something that is inherent with this design. Just wear it in.... :) And yes CRK does have some amazing customer service! Thanks Angela and Crystal for being so nice and polite on the phone with me. As well as this speedy process!
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I Figured it was fine. Very cool for CRK to have picked up the shipping.
Regardless of lock type or manufacture, if you force on the blade of a folding knife hard enough and you will get some movement.
During day to day life its highly unlikely you will ever use the knife in a fashion that would defeat the lock anyways.

Glad to hear you have your knife back. :) Try to relax and enjoy that fine piece of craftsmanship now :thumbup:
 
I can understand some movement in any lock, but lock-rock is different. I have cheap linerlocks that exhibit zero lock-rock even when the closing pressure gets so strong that the lockbar flexes.

I hoped for a different outcome here but I guess the lock is safe enough even if it's not "bank vault solid". Maybe I need to lower my standards.
 
Well it is very slight movement. Just from what I have played with it. I would say a little better off. I know maybe I need to lower mine as well!! But my other crk's have none with the same amount of pressure. Even doing so at the center of the 25 blade. I think I may be too picky or something. I have a large insingo should be coming by next week and I will see on that. But I'm expecting same as my others.
 
Try using it for 6 months continuously and see if it improves. I would think the ceramic ball and the tang will have to mate a little bit over time to improve the lockup. My thinking is that they're both so slick, movement is inevitable.
 
I will give you guys another update here in a couple days after I get some use in. But I still love the knife!! I feel now that I've carried it part the day it's breaking in a bit :)
 
Just tried flexing the 25 that I just got. Same thing as the op, a *very* slight amount of wiggle. I'd call it solid lockup. I understand wanting perfection, but I do think the standard is plenty high here. A little movement in the lock isn't going to cause a failure. Is it over-reaction? Honestly, when you send a knife back to CRK and they send it back in the same condition then I say absolutely. No disrespect to the op at all, I understand your curiosity. I have faith that CRK knows when something is wrong with a frame lock (of all things!), and if they say it's good I'm inclined to believe it. I'm glad that you are satisfied now op, and a personal thank you from me because now I don't have to wonder. ;)

Btw, to those saying that you can get movement from ANY lock... I disagree. I cannot force any movement at all with my Contego, and that has a stout 4" blade. I do believe that I can get movement from any of my frame or liner locks though. But then, I'm a pretty strong fellow. :p
 
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