Reply To: How fine exactly is the "Super Fine" EZE-Lap diamond stone? Welcome! / Forums / General Woodworking Discussions / How fine exactly is the "Super Fine" EZE-Lap diamond stone? / Reply To: How fine exactly is the "Super Fine" EZE-Lap diamond stone? Ed 28 November 2014 at 3:15 am #121570 Luckily, microns are always microns. You’re right- I shouldn’t have typed an “=” sign between the grit number and size in microns since it depends on the grit system. Thanks for catching that. Settings