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After sharpening several knives on my Chosera 1k and Norton 4k, I know realize that Norton 4k, despite being grainier in feel, is indeed a higher-grit stone than the Chosera.

Thanks for everyone's...

If there are tiny air pockets/valleys/dips on the surface of the Norton 4k, wouldn't it cause small chips on the edge of the blade as you are honing it?

The reason you did not have to lap it down much, could it be because your Norton 4k/8k was not made in Mexico?

Also, how is your experience of going from the Chosera 1k to 4k/8k Norton?

What I am worried is that even with 1/8 of an inch off, it is still more "grittier" than the Chosera 1k or the SS 1k, in which case, one should start off setting the bevel using the Norton 4k rather...

I just lapped down 1/8 of an inch off my Norton 4k side. The surface _did_ become smoother. I have not compared it to Chorsera 1k...but I will post another post in this thread when I do. Drying off...

Is there a chart for the JIS scale and different stones?

My Norton 4k/8k is 1 inch in thickness. So that means 0.5 inches for the 4k side. I lapped about 1/16 of an inch off already from the 4k side. Do I need to lap down more? If so, by how much? Thanks!

For some reason, my Norton 4k (the 4k side of a 4k/8k combo stone) feels grainier and rougher than my Chosera 1k even after I've lapped it down considerably.

Is this normal?

When I do my...