Reply by unisaw2

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Posted on Soak Waterstones?

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209 posts in 3000 days

#1 posted 02-07-2012 04:42 PM

Just did a basic search:

Water stone grits vs Sandpaper grits:
Japanese waterstone grades fall under three major groups: very coarse grits for fast removal of metal; medium coarse grits for refining the edge and removing the burr; and finish stones for the final honing and polish. These grades cover a range of 150 to 8000, and they don’t exactly match up with U.S. grades. For example, the abrasive action of a 1000 grit Japanese stone is the equivalent of US 500; and the Japanese 4000, a US 1000.
In comparison to the Arkansas stones, the Japanese 800 grit is equivalent to a Natural Soft Arkansas; the 1000 to a Hard Arkansas; and the 1200 falls between the Hard Arkansas and the Black Hard Arkansas. “

A good link to sharpening and water stones at Fine Woodworking:

Not reallly sure how to tell a water stone from a oil stone, but if it used the oil stone probably feels oily! :)

My water stones are not marked what grit they are, I just know by the color and the original instructions.

-- JJ - Northern Illinois

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