I bought a zwilling sharpener to pair with my new set of zwilling knives, but it even got some dull ones I had to be much sharper than before. But best of all, my shears now EASILY cut better thanks to the shear sharpener part. Does exactly what I bought it for and then some.
I like the Sharpener, works well. No instructions in box. Had to look it up online. 20 course pulls with moderate pressure, 5 fine pulls with light pressure. Could have printed that on the box.