Originally Posted by
mrrabbit
That's if you are aiming for the top of a 10mm nipple for example with an Open Pro.
In that case, ERD = @605.00
As is, ERD = @602.00 for a 12mm nipple.
ERD is not a standard Dan....
=8-)
Perhaps not, but it's close enough to a standard for those of us not yet at your advanced level.