Best sharpening technique for S90V and S30V

[daberti]

Just asking to compare to my (pretty small) knowledge.
Starting grit, finishing grit, angles, steel grain.

TIA

 

[Cliff Stamp]

If you have to do any shaping then the starting grit should be as coarse as possible. The finishing grit is mainly dependent on the type of cutting and the geometry than the actual steel. Essentially the more you push cut and the thinner and more acute the edge the finer the polish tends to be optimal. The only concern with S30V and S90V in regards to the nature of the steel is that the grindability is low which means it takes more time on the stone than with steels like ATS-34 and especially something like 1095, thus use of micro-bevels tends to be even more important because wide bevels on hard to grind steels is really time consuming. There have been issues lately with S30V which are forcing people to run really obtuse bevels, but I have taken Wilson't South Fork down under 10 per side and it works very well on woods, ropes, cardboard and such.

-Cliff