Originally Posted by
mparker762
Thanks for the information. I ordered the 0.09 iron oxide and the 0.3 micron chrome oxide. This should be interesting.
For those of you who are big fans of the coticule, I notice that they've also got 5 micron garnet - that's smaller than the garnets in a coticule.
I'm curious if these extremely fine powders have the clumping problems that bedevils aluminum oxide. You can get 0.05 micron aluminum oxide, for example, but it acts much bigger than that because at that size the particles clump together in threes and fours, so there's not much point. The 0.3 micron aluminum oxide doesn't do this and works fine. I suspect that this clumping effect is ultimately the limiting factor on the fineness of the nakayama hones.