Great for sharpening all types of knives including kitchen, household, sporting and pocket knives, the Diamond UltraHone improves both straight edge and serrated knives to better than factory sharpness. Chef'sChoice Diamond UltraHone Knife Sharpener features a two-stage sharpening provides fast, strong and durable results. The first stage sharpens knives using 100% fine diamond abrasives. The second stage UltraHones the edge using advanced micron size 100% diamond technology.

• Patented, plastic spring guides for knife ensure precise angle control and eliminate guesswork