Features and Benefits:It has three pre-set rod angles designed to provide a precise edge:17� Fine angle: for fillet and fine slicing20� Fine angle: for slicing, butcher, paring and skinning knives.25� Medium angle: for hunting, camping, utility and chef�s knives.The Master�s Edge Knife Sharpener was designed to be easy, effective and attractive, and features a variety of technical and aesthetic sharpening advancements. The Master's Edge Knife Sharpening System includes a pair of both medium (grey, 800 grit) and fine (white, 1000 grit) ceramic rods for sharpening and professional grade polishing.