Overall I am still liking the Manker as a key-chain knife, but after some daily use here are the downsides. Once the blade worked its way 1/16" out of the frame while in my pocket. I assume it was caused by a key pressing against it in the right spot and at the right time. Twice I have reached into my pocket to grab my keys and when I grasped and pulled, I felt that a finger was touching the blade and causing it to slide. I stopped my movement and re-positioned ...