Professional 3-1 knife sharpener with built in angle adjustment from 14 to 24 degree, offering the correct blade angle to expertly maintain the cutting edges of both Western- and Asian-style knives. Also includes unique ceramic sharpening blade slot designed to sharpen 2-Piece kitchen shears. Offers two stages of sharpening for each knife style: a coarse ultra-hard Tungsten carbide side for restoring edges to dull blades and a finely grained ceramic side for honing and finishing edges (also useful for quick touch-ups). A unique handle-shaped grip helps keep fingers safe, and a nonslip rubberized base provides stability on the work surface. Not for use with serrated knives or blades sharpened on only one side of the cutting edge, such as sashimi knives.