Answer
Jan 23, 2023 - 07:41 PM
The 2/1 stone is a little bit finer than the F1500 grit Fepa-F rating. 2/1 is the particle size of the diamonds in micro meters. So, the grit particles in this stone is mostly between 2 and 1 micron. If compared to the grit rating used by Japanese stones, this equates to approximately 8000 grit.
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