I haven't handled every kind of lock there is, and I haven't tested every lock I've seen to its limits. (Though, sadly, I have accidentally tested some to their limits.) So I can't say with absolute certainty what mechanism is strongest. I can only give my impressions of what is the strongest I've seen.
I was recently at Blade West, where I had the opportunity to handle and examine many, many folders, by many different manufacturers, with many different locking mechanisms. From these, one seemed clearly stronger and more reliable than the rest:
the prototype Busse folder
I know this only kind-of counts, because it is not currently available. Some probably don't even believe me that it exists, I handled it, and it will be on the market sometime soon. But it does, I have, and it will be.
It's the first one I've seen that inspired my full confidence; and it is the one I'm waiting for.
--Mike
I was recently at Blade West, where I had the opportunity to handle and examine many, many folders, by many different manufacturers, with many different locking mechanisms. From these, one seemed clearly stronger and more reliable than the rest:
the prototype Busse folder
I know this only kind-of counts, because it is not currently available. Some probably don't even believe me that it exists, I handled it, and it will be on the market sometime soon. But it does, I have, and it will be.
It's the first one I've seen that inspired my full confidence; and it is the one I'm waiting for.
--Mike