Abstract: A knife sharpening device employs one or more guide members which are angularly positionable in relation to a central sharpening surface so that a knife blade may be maintained at a pre-selected angle relative to the sharpening surface during the sharpening process. A pair of sharpening stones are mounted in back-to-back relationship. A guide bar is angularly positionable to define pre-established spacings with respect to opposing sharpening surfaces of the stones to thereby define fixed sharpening angles. A pin/detents locking mechanism is employed for adjustably fixing the angular position of the guide bar. In one embodiment a plurality of guide rods are fixed in eccentric angular relationship with a central columnar sharpening surface to maintain the sharpening angle of a knife blade at a pre-selected angle.