From a physical point of view the 150 gf reading corresponds to certain edge apex width. Based on Mike’s data it can be ca 0.3 microns. When we see the 150 gf readings often, than standard sharpening and deburring process produces very similar edge apex width.
Smaller readings for single bevelled blades mean that it is easier to get smaller apex width for them. An additional factor may be, that the flat side of the blade penetrates through the test media with smaller friction than the bevelled side.
Smaller readings for single bevelled blades mean that it is easier to get smaller apex width for them. An additional factor may be, that the flat side of the blade penetrates through the test media with smaller friction than the bevelled side.