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Need to drill holes in granite

Anything related to the operation of your boat. Steering, Bilge Pumps, thru-hulls, bottom paint, etc.
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Vessel Info: 1995 Boston Whaler Rage15
1987 3697 Carver Mariner
1988 Cougar 46 Kevlar Vee offshore
1969 15' Glasspar / 1967 Johnson Electromatic 85
1996 Boston Whaler Rage 15
Location: Saint Joseph,Mi
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Need to drill holes in granite

Postby waybomb » May 27th, 2013, 11:18 am

Anybody here ever drill holes in counter-top granite? I need to drill two 3/16" holes in my new granite counter top. I am worried about chipping as the bit starts it's hole. I could have my granite guy do it, or I could ask him, but don't want to bother him. I don't think he made any money on this job and he won;t take anymore since he "quoted me". Stand up guy, but I owe him.

So any guidance on drilling into granite would be appreciated.

I did search, and I found anything from using a hammer drill(!), to using a cermaic bit, a cement bit, a carbide tipped bit, and a carbide bit. Very definitive search.

I am looking for first hand experiences only!
1969 Glaspar Avalon /1969 Johnson Electromatic 85
1987 Carver Mariner
1988 Cougar Kevlar 46' with triple blown 572 ci
1995 Boston Whaler Rage
Past - 1988 2807, 1989 4207 Aft

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Re: Need to drill holes in granite

Postby aviator » August 25th, 2013, 11:00 pm

You could ask at Home Depot... IK you need a special bit and you also want to use water/cutting oil [can't remember which] to cool the bit/surface as you drill.
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Vessel Info: '99 404 CPMY
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Re: Need to drill holes in granite

Postby AaHubb » August 26th, 2013, 7:35 pm

If you liked his work I would hire your 'granite guy' to do the job at his normal charge out rate. You will get a better job done by some one that has a stake in doing the job right, plus you will have some protection if the job doesn't go as planned.
'99 404 CPMY

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