I saw this Chinese natural quarried polishing water stone

http://www.woodcraft.com/family.aspx...&FamilyID=4920

....for final honing of chisels and plane blades. They say they are
12,000 (twelve thousand!) grit for a price that is far lower than
any other stone in this grit range, I think this is a great deal but
has anyone tried one? Does anyone think the grit rating is a tad
unrealistic, or straight up?

--
Alex
cravdraa_at-yahoo_dot-com
not my site: http://www.e-sword.net/

I thought I read Dingley stating that these are only good for grinding ink.

Personally I see no need to go further than say 8000.

-j


"AAvK" wrote in message
news:ToAUd.111450$mt.58253@fed1read03...

I saw this Chinese natural quarried polishing water stone

http://www.woodcraft.com/family.aspx...&FamilyID=4920

...for final honing of chisels and plane blades. They say they are
12,000 (twelve thousand!) grit for a price that is far lower than
any other stone in this grit range, I think this is a great deal but
has anyone tried one? Does anyone think the grit rating is a tad
unrealistic, or straight up?

--
Alex
cravdraa_at-yahoo_dot-com
not my site: http://www.e-sword.net/

Isn't the danger with natural stones that they sometimes have irregular
particles? Not that an 8000x nick in a 12000x polish would be the end of
the world. To be worth it in theory it would have be finer than .5
micron honing compound, which as far as I know is currently the final
word in honing. Still, you're splitting hairs at this point ;-).