couldn't find the grit chart as to micron size of the abrasive partials but
from
http://www.caswellplating.com/buffs/buffman.htm#
Chart on compound and buffing wheels for polishing sheet metal, but gives the idea for what the different grits are designed for..
http://www.caswellplating.com/buffs/buffman.htm#wheel
shows what the different grits were made for as far as the metal industry...
basically they say ,
BLACK = Emery Compound, a course abrasive material for removal of scratches, pits, paint, rust etc.
BROWN = Tripoli compound used for general purpose cut and color on most soft metals.
WHITE = Blizzard compound, used for color and final finish of harder metals, has a cutting action.
RED = Jeweler's Rouge, designed to polish without any cutting action. Safe on thin plates. Use on its own wheel.
BLUE = A dryer, almost greaseless wheel - designed to polish without any cutting action. Safe on thin plates. Use on its own wheel.
GREEN = Used exclusively for Stainless Steel.
for cut/color terms see the site,
i wouldn't say this isn't the final authority, its what i could find.
flexcut
http://www.flexcut.com/information/sharpening/
Flexcut
Gold™ site link
tells some but not grit size..
along with the methods they show they tell you how to make the
ABRASIVE WHEEL SYSTEM http://www.caswellplating.com/buffs/aws750.htm
I've been looking for for years.. on the kind of glue to use to make these flexible grinding wheels, they got it....
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I think the preference in compounds is a personal one,
it depends on how your taught, what you have learned since then and what performance you get from a product,
i dont like to hone for long periods or carve two strokes then hone two strokes, so i made some hard carbon steel tools which hold there edges and have become my favorite tools,
but with softer steel tools you gotta hone more often to keep the edges conditioned..
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I have heard some folks talk about using the back of a tablet, or their shoe and having good results, as a hone...
but i think my edege test is cutting cross grain chips, and the knife sounds off like its crunching celery as it cuts the fibers and leaves no tell tail white lines in the cut path, which can occur if you have dull spots in the blade, or scratches in the edege,,,