The jig for knife sharpening comprises an adjustable clamp (1) for holding knives of any thickness and an adjustable stop (2). You adjust the jig to the knife thickness with the screw (3) and lock by tightening the knob (4).
The jig rests on the Universal Support. The exact edge angle is set by rotating the stop or with the Micro Adjust on the Universal Support.
The Universal Support is normally placed vertically for knife sharpening towards the edge. Short knives can also be ground away from the edge with the Universal Support placed horizontally.