Chef's Choice 325 Diamond Hone Sharp-N-Hone Knife Sharpener, 2-Stage, in Gray (0325000)

This professional two-stage knife sharpener uses diamond-plated disks to sharpen both straight edge and serrated knives, creating a long-lasting edge quickly.

• The description claims the knife can be sharpened in 45 seconds and resharpened in 15 seconds.
• The description claims it safely sharpens the entire range of kitchen knives without detempering the blades.