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Old 15 May 2007, 14:03   #1
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About to drill a large hole in transom - advice wanted

I am about to drill a large hole in the bottom of the transom for trunk drain tube - Yes i am very worried about screwing it up. I have several 'practice' bits of wood to test on to make sure I get the drill set up right & have been advised to mask up the gel coat to stop it chipping off .

Apart from the obvious advice of ' pay someone else to do it ' any suggestions ? either where to drill the hole or how to etc etc .
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Old 15 May 2007, 14:22   #2
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Old 16 May 2007, 18:58   #3
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Take measurements on the inside face of the transom to establish the position of the cutout and drill the pilot hole outwards from there first, otherwise you may end up chopping through the deck, rather than just above it

When you've drilled the pilot hole, start the cut of the main hole with the holesaw from the inside to make a clean cut through the inner face of the transom - don't go all the way through. Do the main cutting with your holesaw from the outside of the transom.

Good luck and some pics on here of your handywork will help other folk in future.
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Old 17 May 2007, 02:56   #4
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Good luck and some pics on here of your handywork will help other folk in future. [/QUOTE]

Yes, that would be appreciated.
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Old 17 May 2007, 09:34   #5
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Yes, that would be appreciated.

What drilling do you have in mind????????????
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Old 17 May 2007, 15:31   #6
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What drilling do you have in mind????????????
Any, I just appreciate folks posting 'build' pictures.
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Old 17 May 2007, 15:51   #7
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