I have an SOG Access Card with the plain edge. The blade itself, like all SOG products, is of very high quality, but I have some reservations about the durability of the lock mechanism.<br><br>I don't use the knife much, as it lives in my wallet survival kit (which has all sorts of wallet sized survival gear--in a wallet). Mainly I find it useful for getting past security checks. It doesn't seem unusual to security personnel when I hold my wallet in my hand when entering a rock concert, or when I drop it in the personal effects bin with my car keys before going through a metal detector. If anyone asks, I usually explain that I'm concerned about my credit cards being demagnetized and no further questions get asked.<br><br>The lock mechanism is constructed of plastic, with an external spring. Though the spring is covered by the "pocket clip", it would seem that the pocket clip was added just for the purposes of protecting the lock mechanism. The clip itself, because of this requirement, is effectively useless, as it offers only about 1.5" or depth, rendering it less than optimal as a money clip or leaving 1.5" of the knife sticking out of a pocket if you use it as a pocket clip. Also, the thickness of the clip makes it difficult to fit into a regular wallet slot. <br><br>The wallet I use to carry this knife has a zippered change pocket that it *just* big enough to squeeze the knife into. One advantage of carrying it a wallet change pocket is that change pockets are expected to contain metal objects.<br><br>The tweezers, screwdriver, and toothpick are okay and don't get it the way of the knife's primary functionality. The knife is very easy to open with one hand, and is surprisingly comfortable to use, given its odd shape.<br><br>The primary reason I chose this knife over, say, the Spyderco credit card knife, was the fact that I don't like the way the Spyderco looks, but now that I own the SOG, I may reconsider this.