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post #4 of Old 03-09-2010
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Maybe put a small piece of plywood over hole and fasten with screws then use hole saw?
I would try this

Which side to drill from so it does not wreck the gelcoat?
from outside in just enough to start the new hole, then remove the ply backer and finish it off

1955 Blanchard 51 Custom ( I got a woody )

1974 Ranger 33

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