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The included WE130 Precision Knife Sharpener, utilizes our patented Generation 3 Cam-Lock Vise. This vise is ideal for accommodating a wide variety of knife grinds, including fully flat and hollow ground blades. The Split Jaw Design of the vise allows the jaws to flex so they can firmly grasp distally tapered blades, like many everyday-carry pocket knives and kitchen knives. It offers an expansive range of sharpening angles, allowing you to sharpen a wide assortment of blades, from 13 to 35 degrees per side. Blades with wider angles, such as daggers, cleavers, bushcraft knives and blades with chisel grinds, are all possible on this sharpener, as well as blades with low angles, like many Japanese knives and many knives made from modern super steels. Provided independent angle adjustment will allow you to sharpen asymmetrical grinds with repeatability.