The Locks is easier to Tighten the screws by hand, you needn't Screwdriver! Never Shaking!
It's easier and Fast to Change the Whetstones as you want.
More flexible to use can press the knife on the sharpener when you are not skilled. A backer behind, make the blade of 2 side the same wide. When you are skilled, can not press, easy to use.
Perfect fit with scissors and planer tool, more items fit.
A great addition to your kitchen, great diamond sharpening rod to keep your knife sharp.
