Umnumzaan Disappointment

[Nullity]

so if the ceramic ball has such a high hardness level, could it be that it may just take a longer time and many more opening/closing cycles to allow it to wear or break in a fit properly against the tang of the blade? Could the lock lock decrease or disappear once the ceramic ball wears in a bit or is my thinking just completely wrong?

I dunno man. I'm not sure you can predict whether wear/break-in will make lock-up better or worse. I would like to say everything will kinda mate up and work together better. I always give a new knife time to settle and break-in before deciding it's fate.

 

[joeyza]

I dunno man. I'm not sure you can predict whether wear/break-in will make lock-up better or worse. I would like to say everything will kinda mate up and work together better. I always give a new knife time to settle and break-in before deciding it's fate.

Yea man, I'm gonna give it some time. Hopefully it'll get better, an if not, always got that lifetime warranty to use:thumbup:

 

[JNewell]

so if the ceramic ball has such a high hardness level, could it be that it may just take a longer time and many more opening/closing cycles to allow it to wear or break in a fit properly against the tang of the blade? Could the lock lock decrease or disappear once the ceramic ball wears in a bit or is my thinking just completely wrong?

The ceramic is incredibly hard - it is not going to wear in at all.

 

[JNewell]

yea I was actually asking about the ceramic ball that contacts the lockface, not the detent ball, I know what the detent ball is there for. Umnumzaan is the only knife I know of that uses the ceramic ball on the actual lockbar face. I'm sure there are many more that use this that I'm unaware of. I mistakenly said detent ball instead of ceramic ball in the previous post, my bad. Thanks for the info tho guys appreciate it

FWIW, on the Umnumzaan the ceramic ball does double duty as the detent ball and the locking leaf contact surface.

 

[joeyza]

FWIW, on the Umnumzaan the ceramic ball does double duty as the detent ball and the locking leaf contact surface.

I hadn't realized that that's interesting thanks:thumbup:
do you know of any other knives that do this?

 

[Ernie1980]

The Sebenza 25 uses the same detent/lock interface

 

[mjolnir74]

I've had 3 Umnumzaan's. I couldn't detect any play on any of them. Maybe I wasn't cranking hard enough?