Thread: Norton 8k vs chosera 10k.

I have also observed that, the finer the stones, the "crispier" their edges. It's not a rule without exceptions, but it is frequent. And the same stones, if used with slurry give a mellower and coarser edge. But those crisp edges, after 10 passes on CeOx or CrOx can easily become someone's favorite choice.
For the microscope, I have used one in the past, but I don't find it useful at all now. The 1000 grit stones, no matter the manufacturer, do leave a coarser edge-less mirror like, than the finer ones. And it is visible to the naked eye. Works pretty much like a marker pen. If the whole edge looks like it has the same type of polish, and passes the TPT, you ve got your bevel set. After that, hone with your progression as you normally would. If the edge looks like it can shave, try it, and choose what is comfortable for you.
For the grit/micron of the companies;
Norton 8k is at 3 micron. 1 micron is around 24k grit.
Naniwa chosera 10k is about 1 micron.
Naniwa superstone should be around 12k grit for 1 micron,
Suehiro, 10k grit for 1 micron,
Shapton, 15k grit for 1 micron,
Sigma select 10k for 1 micron.
Not sure for the kings.
And the list goes on. I'm 90% sure for the numbers, but if I'm wrong somewhere, please correct me.

I used to scratch my head when Lynn used to say certain stones were made for razors. Now I think I understand what he meant. The norton 8 and chosera 10 have a completely different feel. The n 8 feels softer and IMO is softer as it dishes at a faster rate than the chosera 10. This may come into play with smoothness. Im not speaking for Lynn, but this makes sense to me. I may be wrong about the reason though. I find the grit ratings to be purposely confusing(LOL) I have a suehiro 20k that is rated at .5 microns, the shapton 30k is rated at .49 microns. Thats a big difference. I know the old rating vs new rating. But what is it, 20 or 30? Doesnt matter to me as that is only one part of the whole picture. I find naturals now less confusing as they dont rate the stones by grit!

One statement I have posted multiple times about the Grit Ratings, vs Micron rating vs Comparisons between these

There is only one "Truth" about the ratings that are stamped on hones,,, that rating only correlates to another hone in the exact same series.. They don't even correlate between different series of hones by the same maker


Translation

A 10k Naniwa SS is a finer hone then a Naniwa SS 5k But there is not a direct comparison between a Naniwa SS 10k and a Naniwa Chosera 10k these are two different hones .. And there is certainly no direct comparison between a hone from a different maker..

Grit/Micron size is only a small part of the equation of how a hone works..