Thread: A Change in the Line-Up

These grit ratings can make you go nuts. I use choseras and I've done 1,3,5,10 then finisher, I've also done 1,5,10, but raise a little slurry on the 5 for the same result in visual scratch reduction. In a synthetic progression I finish on the 20k suehiro, but I also use the 15k suehiro and find the blade is smoother with the 15 then without it. I find the Norton 8 leaves finer scratches than the chosera 10. The shapton 30 k is .49 microns, the suehiro 20 k is .5 microns. I'm sure its done to confuse us and buy more stones.

Originally Posted by Laurens

I would like to complicate matters a little further. DMT says the exposed part of their diamonds is about a third of the diameter, e.g. the 3 micron EEF has 1 micron exposed.

And has someone ever tried a Norton 8K edge versus a Shapton 4K or 5K edge? According to the table, they should have comparable particle sizes, but I would not be happy to shave off my Shapton 4K.

When I had he naniwa superstones I used to do 1k IF it needed a bevel set, 3k/5k and test shave. I'd use the 8k to finish if the shave was up to snuff with the 5k. Same as I used to do with the Nortons, shave after 8k and go on up the grit ladder if the shave was okay at that level. I started doing this with the naniwas because of the Japanese grit charts showing a close equivalence between naniwa 3/5 and norton 4/8. Seemed to work very well at the time.