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Compass Marine How To | all galleries >> Welcome To >> Sealing Deck Penetrations to Prevent Core Rot > #654 Bit - Cut-A-Way of Potted Deck Hole
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#654 Bit - Cut-A-Way of Potted Deck Hole

After I removed the tape I re-drilled each of the holes with my 1/4" drill and then counter sunk the two holes that had been potted.

This is a picture of the hole I made with the 1/4" #654 Dremel bit. The hole is clean and precise with plenty of separation between the epoxy and the core. Both the top and bottom holes through the deck skins remained at 1/4" for a factory original look and feel yet this is much better than how it would have come from the factory.

Nikon D200
1/60s f/5.6 at 70.0mm iso100 full exif

other sizes: small medium large auto
peter charak 29-Aug-2013 22:56
Good photo. On my 1973 built boat (new to me) there are several leaking-through fittings. Don't know for how long. Would it be advisable to first inject some sort of 'stop rot'? Aware that this isn't an advice page, just trying to make others in my situation aware of further research requirement on their part.