Drill the hole as close to the correct size as possible to give the fitting the greatest mechanical strength.
07-10-2009 07:32 PM
Thru Hull Hole Sizing
I'm installing a new 3/4" ID thru hull (forespar marelon). The actual hole sizing required is at least 1 1/16". Should I oversize the hole (i.e. 1 1/8 or 1 1/4) so that there's plenty of room for sealant or size it as accurately as possible. Any Thoughts?