Originally Posted by MarkSF
This is great advice but a further refinement is to drill the holes oversized, countersink them, fill with epoxy
, then drill the correct sized holes, then countersink again. This leaves the core
sealed off by epoxy
, even if the bedding leaks
A further refinement is to cut back the core
a bit leaving the original size hole but the core removed inside. Simple thing like an allen wrench in a drill works.