Subject: Re: grinding compound 58 angstrom?

From: Eugene P Feist <[email-masked]>
Date: 20 May 1995 21:05:22 GMT

Hi;

   I have my doubts that any abrasive can be made as small as 58
Angstroms, but someone asked how "Grit" sizes are measured, and that I
can help with.
   Grit numbers represent the number of abrasive particles that can be
lined up in one inch. i.e. 400 grit is 400 little bits of abrasive in a
line. Boy would I hate the job of counting them.!

Regards
Paul Feist
Paladin Gun Repair.