Benchmade axis lock strength test

J

jdd32

Joined
Apr 26, 2012
Messages
65
I've seen a lot of people ask how strong axis locks are so when I saw this I thought it was pretty cool. They tested on the 300 flipper. I don't think anyone needs to worry about their axis lock failing them, unless you plan on putting over 600 in-lbs of torque on it, haha.

[video=youtube;verXb0gZoM8]http://www.youtube.com/watch?feature=player_embedded&v=verXb0gZoM8[/video]
 
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During hard use, I'm more worried about accidentally disengaging the axis lock than it failing from load.

Still an impressive performance though, right up there with the tri-ad lock.
 
BM scored huge with the AXIS lock. Not sure where they would fall into the modern knife world without it?
 
I love the axis lock on my Rift. Very easy to close one handed, and I never worry about it failing. I have more confidence in the Rift's Axis lock than any other folder I have ever had.
 
Awesome video! Thanks for posting it. I have had my eye on this knife and was thinking about a new EDC. always loved the axis lock but had no idea how much torture it could withstand.
 
That was a bit painful to watch. But I have seen an axis lock failure on youtube while the person was batoning wood.
 
I heard/saw somewhere that the 275 adamas failed at around 800 ft lbs. Cant remember where I saw or heard it tho. I can believe it since the axis lock is beefed up in that model. I heard that before this video, so ive always felt safe using a benchmade.
 
100eyes said:
During hard use, I'm more worried about accidentally disengaging the axis lock than it failing from load.

Still an impressive performance though, right up there with the tri-ad lock.
Click to expand...

You know, I don't think we've ever seen a tri-ad actually fail. It would be fun to see a couple of ridiculously overbuilt knives where the lock would have to fail before anything else, set them up with a tri-ad and an axis, and see which one could take more.

Brad9660 said:
That was a bit painful to watch. But I have seen an axis lock failure on youtube while the person was batoning wood.
Click to expand...

Shock damage from weird torque and impacts are probably a bit worse than straight even force, I'd imagine. That's why batoning is a technique thing...
 
IM sure it would break pretty easily if that force was applied very quickly.. Like how it would actually happen in a real world situation. If you do end up in a situation where you need such a strong lock you are either extremely unlucky, or a complete idiot.
 
Grease said:
You know, I don't think we've ever seen a tri-ad actually fail. It would be fun to see a couple of ridiculously overbuilt knives where the lock would have to fail before anything else, set them up with a tri-ad and an axis, and see which one could take more.



Shock damage from weird torque and impacts are probably a bit worse than straight even force, I'd imagine. That's why batoning is a technique thing...
Click to expand...

I've seen one, though the failure was also in the blade.

[video=youtube;PCTOiymTJSo]http://www.youtube.com/watch?v=PCTOiymTJSo[/video]
 
I just got one of these in a trade,cand am very impressed! Perfect fit and finish and razor sharp. This just adds to the appeal!
 
Jastab said:
I heard/saw somewhere that the 275 adamas failed at around 800 ft lbs.
Click to expand...

This is very unlikely. 800 ft-lb is a LOT of torque.


Strigamort said:
Almost double that.
Click to expand...

The video says 1717 in-lb, and later says "over 1640 in-lb". This is not "double", it is only about 1/6th of what Jastab said.

Gotta keep in mind the units- 800 ft-lb cannot be compared to 1717 in-lb without converting one of the numbers to units consistent with the other. 800 ft-lb equals 9600 in-lb. Now compare 9600 in-lb with 1717 in-lb.

In the video it appers that the force is applied at a distance of about 2" or a little more from the pivot, so at 1717 in-lb the actual force applied is something just under 850 lb.
 
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