Originally Posted by
Derek Cohen
Raf, I am not disputing what you do here, but have a question about the use of the finer grit …
It has long been a puzzle for me why some recommend coarse grits to flatten stones at the coarser end of the spectrum, and finer grits for stones at the finer end of the spectrum. The point is, as I believe, the result in honing comes from the grit in the stone and not the surface treatment of the stone.
I use the same coarser grit (140 diamond stone) to maintain all my waterstones. In the case of these oil stones I would use the 90 grit SIC powder or the diamond equivalent.