Thread: comparison of hones

FEPA 1200 is 7.0 - 2.5 microns at 80%
according to standard 42 D-1984 and DIN 69101
Thats quite a tolerance.
One more factor is the shape of the grain and its density in the matrix.
The microscope photography of hones at Tim Zowada's site is interesting to see.

Another factor is differences in steel qualities.
I'm afraid there is no easy way out.

i used this table.

however i agree there is definitely no easy way out and its not just a calculation on paper.

nice page that is of tim zowada thanks

Experience will play a role in what one person may or may not be able to do with a hone. But, certain factors will result in the same results for a wide range of users. If enough people are saying that a stone is very soft and makes a slurry with one or two passes, then that kind of data can be relied upon when considering a certain type of hone. If a type of stone cuts slow, then there is a good chance it will cut slow for anybody. The data collected would represent a wide range of data points, but a median could be found or a range could be given, especially when considering natural hones. Maybe different charts could be made for different types of razors honed as well.