Norton 1000/4000 Grit size?

[DoctaD]

Anybody know what micron/grit rating on the Norton 1000/4000 combo waterstone is? I have this stone, and would like to add some Chosera stones to fill in some gaps in my setup. I need both coarser (eg: 400 / 800 range, ans well as around 2000 and prehaps the 5000 and 10,000 down the road. I have a Suehiro 5000 that does a pretty good job at polishing.

 

[thombrogan]

15 and 7 something.

 

[DoctaD]

Thanks. I couldn't find any references that revealed that info.