J'ai retrouvé:
The only issue with the frame locks is the wear. Since the lock bar rubs against the blade tang which is harder (or at least is supposed ot be) the lock bar wears and eventually the blade will develop wobble, and the lock will probably overengage. Apparently the risk of failure is increased. However CRK addressed this issue by heat treating the lock bar surface contacting the blade tang. As it was explained on CRK Forum on Bladeforumss by heating the lock bar contacting surface, very thin layer of Ti carbides are formed (you can actually see that layer on your lock bar if you check). It's very hard, approx 90HRC. That solves the bar wear problem. At least there are several people using their Sebenzas regularly for several years and there's no such problem for them. As of the ease of use, frame lock is easier to operate then all of the liner locks I've ever had, however less comfortale than the Axis Lock.
Extrait de :
http://www.zknives.com/knives/folding/h … sseb.shtml