Spyderco Compression Lock

As I understand it, Spyderco did some tests and found that all else being equal, the Compression lock, the AXIS lock, and the Tri-Ad lock all tended to fall into the range of greater than 200 inch-pounds of torque before failure.
 
I could see three Spyderco Paras functioning as makeshift door hinges. Wooden door or steel door?
 
Goodspeed said:
At how many lbs. does the lock give out at? what is it rated at?
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I think the actual data is classified, although the 200lbs/inch might be a good guess (not sure myself). The lock is strong enough to not close on my fingers when I am using the knife it is attached to for various daily chores and food prep. That is pretty much all I can ask it to do. I cannot logically fathom why it would matter aside from conversation to NKP.
 
All knife locks are as strong as the maker wants them to be. You build it, break it, see what broke and make it stronger. Repeat until you're happy. Strong locks are easy to make, on the other hand reliable locks take skill to design and tight quality control to produce.
For example, a poorly made liner lock will commonly disengage when a small shock load is applied. Note that enough shock loads will eventually destroy any lock, so you can't actually test for it on a regular basis, but a well designed lock will hold where a poorly designed one is allowed to slip. You could have the biggest toughest lock in the world but if it isn't made right it could fail with a small bump to the back of the blade, where something much weaker, but made right, would do just fine.
 
singularity35 said:
It's another data point about the knife that is of interest to me too.
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+1

That being said , the only lock failures I had so far were due to shock and severe side stress on the knife frame
You can't test these issues using a static weight hang , regardless how much weight you are hanging
 
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