Review on Ultimate Precision: Chef’sChoice 290 AngleSelect Hybrid Knife Sharpener – 15 & 20-Degree Diamond Hone, 3-Stage, Black by Mike Pedroza

I've never learned how to use a whetstone properly so I decided to give this knife sharpener a try. I practiced on some old knives that were taking up space and were no longer used. It took a few passes to learn how to properly wield the knife with the right (but light) pressure and timing, but I got my way in the end. It's definitely not an everyday tool, but a great alternative for picking up all my dull knives and taking them to the local sharpener ($$$).