Thread: Abrasive Grit Comparison Sheet

Originally Posted by Smokintbird

After spending more time digesting this (JIS grit table for Japanese water stones in microns (electrical resistance method)) chart you posted.....

That is quite some variance! With variance numbers like that concerning the 97% rule and the 3% possible maximum.....That kinda sucks!

but, like jendeindustries said, you have answered some questions... Thank You!

Yeah, that does explain a lot but some makers seem to grade tigther than the specifications which is nice... Shapton seems fairly consistant an Naniwa even more so, at least in their Snow White 8k and ceramic SuperStone series.... haven't tried their new Chosera stones yet though I hear they are the cat's meow. Alas, I already have half a dozen different 8k stones alone or I'd order a set of them! (BTW, I've admired the stone ponds Tom has over on Jende's page for years too, though have never managed to talk myself into one )

Anyway, while on the subject of hones,
I ran into someone over on Blade forums about 4 years ago and we were talking about a company in Moravia Iowa that made "Frictionite" razor hones in the early 1900's.

Anyone know if anyone has ever duplicated these (I know they sold the recipe but the original buyer was unable to duplicate them) or found anything that works like them? I've always wondered how they would compare to a natural Japanese stone.