The dependable Work SharpA(R) Whetstone Knife Sharpener is the fast, easy way to quickly sharpen your knife to a razor's edge. Saturate the waterstone, start with the coarse side, then end with a razor-sharp finish on the fine grit side. Included optional angle guides can give you a correct angle at either 15 or 17 degrees, or remove them and sharpen at your own custom angle. Dual grit Corundum sharpening stone surface 1,000-grit and 6,000-grit surfaces 15Adeg and 17Adeg sharpening guides Water control base Anti-skid feet