Thread: A theoretical discussion about honing particles

from ]http://www.supergrit.com

ABRASIVE GRIT SIZE COMPARISONS
There are three measurement systems for the size of abrasive grit: US CAMI (Coated Abrasives Manufacturers
Institute) or ANSI, European (FEPA Federation of European Producers Association), and Micron grading. CAMI
tolerates the most deviation of grit size for a specified grit. FEPAhas tighter tolerances. Micron is even tighter. Up
to 240 Grit, CAMI & FEPA grading is similar. As grits go finer, FEPA grit numbers go up faster than CAMI.
Example: FEPA 600P = CAMI 360, FEPA 1200P = CAMI 600. 20 MICRON corresponds to about 400 grit CAMI or
800P FEPA. The trend is to adopt the European FEPAgrading system even in the USA.


Going by the above, grit and mesh can be, and ARE, significantly different, depending which scale you use. The following excerpt from the next page.

http://www.supergrit.com/downloads/S...og05_page4.pdf


based on that, I think Bart is headed in the right direction. Possibly.