I have read these but chef’s knifes dont look like these knifes straight and then curve. so you just match the curve at the end, they are curved all the way.
The first one is the 1600. As you can c the both stones have completely different structure and i think you can see some of the problem on the edge.
The second one is the 1200 which is ok but I did not expect all these holes on the surface.