WEAK detent on ZT0909

[Mechanical Advantage]

I just picked up two ZT-0909's online (major knife retailer), and I've gotta say I'm pretty disappointed. Neither has the monster-strong detent I've heard SO many people talking about. One knife flips okay, but it doesn't fire nearly as hard as I expected. Frankly, my RAT-2 fires harder. But the other fails to even get past 90 degrees at least 90% of the time. I've tried push-button and light-switch techniques, but neither really do the trick.

Now, I get that it's a heavy blade, but I've seen numerous videos of people demonstrating the detent strength by gradually ramping up finger pressure on the flipper tab until *POW*, the blade fires and locks up hard. If I do that, the blade lazily pokes out maybe 45 degrees.

And it's not like there's grit in the bearings or the pivot is too tight - in fact, I can even shake the blade out with one or two good firm shakes. The detent just isn't there.

Any fix, or should this warrant a return?

 

[evilgreg]

If you want it firmer have you tried carefully bending a little more tension into the lock bar?

 

[sharp_edge]

If it is not too late, I would ship them back to the dealer for a replacement or refund.

 

[Mechanical Advantage]

Looking closer, the detent ball is flattened quite a bit. I'll have to look at the other, but I think these are going back. Too bad, I was really psyched about this knife. That's why I got one for home and one for work.