How to determine lockup percentage?

Cypress Creek Knives

Cypress Creek Knives

CCK
Knifemaker / Craftsman / Service Provider
Joined
Dec 15, 2010
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The title pretty much sums up what I'n asking. I hear everyone talking about how early or late their sebenza lock up is. I dont know how to determine my sebenza lock up and I would like to know how. Thanks for the help
 
So does that mean such a measurement doesn't apply to the Benchmade Axis lock or other types that are similar?
 
People are talking about what percentage of the blade tang is covered by the lock face when the knife is open and the lock is engaged. If about 20% of the blade tang is covered that would be early lock up, if it's 90% that would be late.
 
Thanks for the replies. I thought that was what lockup meant. I just wanted some clarification.
 
Haze said:
People are talking about what percentage of the blade tang is covered by the lock face when the knife is open and the lock is engaged. If about 20% of the blade tang is covered that would be early lock up, if it's 90% that would be late.
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What's good? Early or late? And why?

Regards
Dimitris
 
What ever works is fine as long as the lock upis strong. I carried a seb for 10 yrs and cycled that blade 1000's of times. Finally there was some blade play. I sent it in to CRK and they replaced the Ti scales at there expense. They are fair, honorable people. That's why I own 12 sebs and still carry them daily desite the fact my collection of handmade folders is quite extensive!
 
Demetres said:
What's good? Early or late? And why?

Regards
Dimitris
Click to expand...

With Sebenzas, lockup percentage isn't really as important as with other knives. Sebenzas have a treated lock face which greatly reduces wear over the life of the knife, so having early lockup isn't nearly as important.

With other knives (Titanium frame locks and liner locks) early lockup is desirable, mainly because the soft titanium wears pretty quickly due to it rubbing up against the steel blade tang, which is MUCH harder than the Ti. In this case, we desire early lockup because it gives us the most possible useful life, compared to a lock that it already sitting at 50%. Under normal circumstances, a lock which sits at 20% will always outlast a lock which sits at 75%. (or anything beyond 20)

Again, with CRK knives it's not really an issue, due to their treated lock face.
 
If theres no blade play, dont worry about it. If there is, send it in and they will fix it. The customer service is unbeatable.
 
with a lot of talk about lock up percentage, there are knife makers that slant the end of their tangs so that it's harder for the lock to travel. Does that hurt the lock at all? Or is it an actual improvement and something others should do?
 
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