Review on 🔪 Wüsthof 2-Stage Portable Sharpener (Model 2922) - Optimize your Search! by Erin Buck

To clarify the use: someone wrote to press gently, I pressed so gently that nothing happened! So push until you feel a cut. Hold the knife perpendicular to the table at a 90 degree angle and start at the knife handle. My REALLY dull Henckel knives took 15 passes on the rough end and 5 passes on the thin end and they came out great. As I worked, I often rubbed my fingers over the knife blade, turned the sharpener upside down, and tapped the table to shake off the shavings. I could rub my finger on the blade to see when it was sharp, which was very different from when I started. I haven't sharpened a blade with much use in over a year. Once I figure out what I'm doing, it works great. Very good product.