Thread: My razor is too sharp???? I like a duller edge??

Originally Posted by mparker762

But he measures an edge from some coarse grit diamond (9 micron?) and it's 0.4 or something, and then later measures with 1 micron and it's 0.38 or so, and later with 0.5 micron chrome oxide and it's 0.37 or .36 or so.




Hmm, now I've got to go back to verhoeven's paper, because I distinctly remember them topping out at 0.34-0.38 past about 9 micron diamond, depending on the hardness of the steel and irrespective of grit.

I have the document open here:

0.35 to 0.45 is what he measures on a commercial blade.

0.4 is what he measure on a razor honed by one mr Dauksch

1 to 1.5 is what he reports to have found after honing on a 1000 grit wheel with "lightest pressure and slowest of wheel speeds"

0.50 is what he reports of a 6000 grit water hone.

He also tried a 8000 grit stone, but found that stone to leave sligthly coarser scratch marks than the 6000 stone. He concludes: "The results indicate that an advertised finer grit in this 6000 to 8000 size range does not guarantee a finer abrasive action."

0.35 is what he reports after stropping on CrO (at the bottom of p.27)

EDIT: I see we were both vigorously reading
Bart.