"DESCRIPTION Featrues: The Precision Adjust Knife Sharpener is an angle adjustable, three abrasive grit, knife sharpening system that delivers precision and repeatability. Sharpening angle can be easily adjusted from 15° to 30° in 1° increments to sharpen every knife you own. Tri-Brasive™ includes coarse 320 and fine 600 grit diamond plates to quickly restore a sharp edge, and a fine grit ceramic stone to hone an incredibly keen edge on any knife. Innovative clamp design quickly and safely secures the knife. Sharpening base provides a stable platform for benchtop sharpening. Technical Specifications: Angles: 15° to 30°. Abrasives: Coarse diamond, fine diamond, fine ceramic. Inclusions: 1 x Work Sharp Sharpener Benchtop Precision Adjust - WSBCHPAJ-I REVIEWS"