Apr 09, 2012· Converting Grit to Microns Discussion in 'Maintenance, Tinkering & Embellishment' started by TheBishop, Apr 7, 2012 Apr 7, 2012 #1 TheBishop 203 Aug 27, 2009 Support BladeForums! Paid memberships don't see ads! Something handy I ran across: ehow/how_7439300_convert-grit-size-micron ,...