I think it's because on the tang it is ground in a angled curved path. Most companies just cut the tang flat at an angle to compensate for the liner lock eventually wearing.
It means the tang of the blade where the liner "locks" is radiussed, which means that the farther the liner goes up the blade tang it needs to wear exponentially - in the case of my stryker or Pinnacle (yes, that one too) the liner keepssticking about halfway and never went farther. I think the Ti workhardened on the surface.
Greetz, bart.
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Not having good enough eyes to detect a large radius on a 1/8" thick piece of steel, I can, nevertheless state with confidence that all my CRKT liner locks have angled tangs. I naturally assumed that all liner locks were made that way. My Spydie Walker is angled. So is my Impulse, though not quite so obviously. Will have to check my Whirlwind, my only other liner-lock not made by CRKT.
Bugs: The angled tang is because the swing of the liner lock is an arc. Also, a liner lock will start to wear out and get a tiny bit shorter, and so it will try to travel further and further to the other side. A radiused or angled tang will accomodate somewhat for the shortening liner, increasing the amount of wear the liner can sustain before it goes to the other side and up and down blade play results.
Is there anyone can share with me the comparison of current folder locking mechanism? I heard of LAWKS, traditional back lock, liner lock, BM's modified liner lock, rolling lock, AXIS, etc.
I have noticed this concave tang on several of Pat Crawfords newer folders. I really like the idea of it as it seems like it would take a l o n g time to wear the locking liner down to the point of allowing blade play.
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Art Sigmon
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