The Work Sharp Precision Adjust Knife Sharpener is a knife sharpening system that delivers precision and repeatability. The adjustable sharpening angle with adjustments from 15 degrees to 30 degrees in 1-degree increments allows you to easily sharpen most of your vibes, and the 320 and 600 grit diamond plates remain durable and coarse use after use. Work Sharp Precision Adjust Knife Sharpener - Knife Sharpener And Care at Academy Sports