Thread: Diamond paste revisited

Here is Ken Schwart’s micron/grit chart

.50um is about 30K grit and .25 um about 60K . I am finishing on what is claimed to be 200k grit which would be about .10um.

It is a very comfortable edge. The 50k .25um strop will refresh a tugging edge in 10-15 laps.

Available CBN Abrasive Sizes from Ken Schwartz
Abrasive size in microns (μ) Grit Size (JNS)
80.0 #180
45.0 #320
30.0 #500
15.0 #1,000
4.0 #4,000
2.0 #8,000
1.5 (1 1/2) #12,000
1.0 #16,000
0.75 (3/4) #24,000
0.50 (1/2) #30,000
0.25 (1/4) #60,000
0.125 (1/8) #120,000
0.10 (1/10) #160,000