Frame Lock Flippers Issues

Big thanks for all the responses! Looks like I have several knives with a major design flaw. The worst thing is the makers of these knive could not have been unaware of this problem. Worst yet, they chose to ignore it and sell me a defective product. OK I got that off my chest. Now I have to practice my "sleight of hand" skills so I can use these knives LOL.
 
I like the ZT 470, but my finger would always make the knife real hard to open. Also, the ZT 095 was the same way. My ZT393, 450, 301 works great! I would sell the 301 if anyone interested.
 
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I actually favor liner locks to frame locks for several reasons, and this is one of them. Aside from there being no interference with flippers, there is also no way to spring a lock bar because the whole scale is in the way. If I need more strength than a well built liner lock then I need to go to a lockback, or even a fixed blade.

The problem could be mitigated by making the lock bar more narrow to provide more grip area, I doubt it would lose any strength if properly engineered.
 
MarkN86 said:
I actually favor liner locks to frame locks for several reasons, and this is one of them. Aside from there being no interference with flippers, there is also no way to spring a lock bar because the whole scale is in the way. If I need more strength than a well built liner lock then I need to go to a lockback, or even a fixed blade.

The problem could be mitigated by making the lock bar more narrow to provide more grip area, I doubt it would lose any strength if properly engineered.
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I do think a narrower lockbar would be flexing more than a wider one, given everything else the same. Also, I suspect a narrower lockbar is more sensitive to pressure on it.
 
It's called arthritis or neuropathy, you now officially have old man hands. Get a Benchmade or Spyderco, most are very easy to open. You'll find sweeping the blade open with a thumbstuds or an opening hole much easier than frame lock flipper.
 
JBC6650 said:
It's called arthritis or neuropathy, you now officially have old man hands. Get a Benchmade or Spyderco, most are very easy to open. You'll find sweeping the blade open with a thumbstuds or an opening hole much easier than frame lock flipper.
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Are you psychic? I am old, but no arthritis. I have had two major hand surgeries in the past year on my right (strong) hand. But none of that has anything to do with these knive not working as they should. I can pop a thumb stud open with authority. I can do all the Spydie flipping stuff, and carry a Military most of the time. Axis locks, liner locks, compression locks, lock backs I got em all, many of them and they all work as the should. I also have several frame lock flippers that work perfectly. I have handed some of the aforementioned knives to several of my knife crazy friends and they look very puzzled when it won't flip. I have to tell them " Oh yeah, I forgot to tell you you can't touch the lock bar".
 
I've noticed that on my one frame-lock knife. My solution is to reposition my fingers when flipping it open. That knife is a CRKT Batum. I sort of like it for slicing open bags of dirt and gravel and other monekying about in the yard, but aside from that, it's the knife that clarified why I don't like "finger choils" and frame locks.
 
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