For those wanting full control of the sharpening experience, the Precision Adjust Knife Sharpener is an angle adjustable, three abrasive grit, knife sharpening system that delivers precision and repeatability by controlling both the edge angle and the blade in unison.Sharpening Angle can be easily adjusted from 15° to 30° in 1° increments to sharpen every knife you own. Tri-Brasive includes 320 grit coarse and 600 grit fine diamond plates to quickly restore a sharp edge, and a fine grit ceramic stone to hone an incredibly keen edge on your knives.Innovative V-Block Clamp design quickly and safely secures the knife and rotates 180° at the push of a button when sharpening to make it faster and easier. Sharpening base provides a stable platform for benchtop sharpening.Whats in the Box