Jim,
Your parameters drop in high volume just fine. Typiically
though I see the figures reversed. .030" dia Internals and .025"
dia Externals. What we like to
use is DHS (Drilled Hole Size) + .012" +2AR (2X the Annular
Ring).
That's for Externals (outerlayers). For innerlayers we use .014"
for the second
number. This way the manufacturing tolerance is a locked in value and
the annular ring (requirements) are a variable.
Groovy