is this hone good enough to sharpen these knives?
I think the real question there is, are these knives good enough to use on this hone? I don't think the blade will have the hardness to really be of any use if sharpened on the 8k side, even the 4k side will probably be too fine to put a new edge on these blades - depends just how blunt they are.

You can try though, use an x pattern as you would with a razor, but you have to concentrate to ensure you are holding the knife at the right angle; you will feel more draw when you have the full bevel contacting the hone surface. The hard part is getting a consistent edge all the way along the curve of the blade. I'd just use the 4k unless you have a 1k, in which case I'd use that, then finish with a steel.

IMO if you want a knife that really hones well, you have to go for a Japanese laminated blade. The level of sharpness you can obtain with these knives makes me giggle like a school kid!!