The quality of the knife speaks to me very. It is always a pleasure to take the knife in his hand.
Unfortunately, the handling of the knife for me personally so bad (awkward) that I have still risen another meter.
In order to extend the blade wheel has to be rotated to the rear, causing a clearance between the upper and lower half of the diameter is obtained. Only then the blade can be extended. When snapping the blade (or the associated device) then you have to look closely, that the device sits exactly in the groove because it can happen otherwise that the blade to turn the wheel (screwing together the upper and lower halves) not optimally fixed is. Thus, it is (at least for me) no measure of rapid blade in and out.
I advise the knife to view before purchase and try out the mechanism.
My anyway, I'll just stop using the paper where I need to extend the blade only once a day. Buy I would not take it anymore!
Regards, Robert