On Sat, 12 Feb 2005 11:04:40 -0600, WD wrote:

Repost again, original did not show up.

Is there a simple way to determine the grits size of sharpening stone without
the original boxes etc.?

Thank you in advance.


Sure. Put it under a microscope with a calibrated reticle and measure
it, then compare the size of the grains to one of the abrasive industry
standards.

Simple.
8-)

More practicle for home use might be to try working some mild steel and
see what sort of finish it gives compared to your other stones.

The fact that I sand 80-100-120-150-180 is really only a convenience.
The essential information is "start coarse, end fine."

So long as you have a handle on how it compares to your other stones,
that's all you need to know.