The AccuSharp Precision Sharpening Kit allows you to manually sharpen your knives at a consistent, exact, fixed angle. This kit provides precision sharpening designed to maintain accurate results for your knife’s specific edge. It is equipped with six-angle and five-stone options to keep your knife’s edge razor sharp. The knife clamp has settings for 11, 15, 19, 21, 25, and 30 degree angles.