grit size on Spyderco ultra fine hone???

gratewhitehuntr said:
Be nice if they just added a number to the description :jerkit:
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There really isn't any such thing as a grit size for ceramic stones. Estimates is the best you can do, and Spyderco wouldn't want to spread false information. Grit sizes are all over the place and are unreliable anyway, IMO.
 
In general when a direct corrospondence can't be made what is used would be effective numbers which are basically functional quantities. In this case it would mean what grit of a waterstone produces a finish similar to the Spyderco UF. There has been some discussion of this recently in this forum by people who have used the UF and high grit waterstones. It is very high but there are several grades higher, so it would have an effective grit of several microns.

-Cliff
 
ive heard from 2000dontknowwhich grit to something comparable to a 12000grit chinese waterstone. i have one of those for my straight razor
 
Good luck pinning it down. I've even heard a Shapton 2000 and a Norton 4000 are very close to the same finish. I think I also remember that the ceramics get finer with use.
 
Near as I can tell it is somewhere close to the Lansky blue sapphire hone, and both of them seem to be somewhere between a Shapton 2000 and 5000, but both are so hard that it is difficult to get a good clean surface for comparison... leaves too many edge scratches where the stone makes good contact and where it makes bad contact (like it has an uneven surface that will not give a good polish) and streaks from metal on metal where the swarf got balled up in between the surface and the stone. Have to try polishing a small hunk of metal that is smaller than the stone with some lubricant to keep it from galling and see how that turns out.
 
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