Designing Kitchens and Bathrooms - How to cut outlet hole in granite

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lorider0
03-13-08, 12:44 AM
I was wondering how to cut outlet holes in my granite slab that is 3/8 inch thick.

Kobuchi
03-13-08, 01:11 AM
Angle grinder with masonry disk, cut from back. The big ones are a chore to hold and make accurate cuts with.
chandler
03-13-08, 06:09 AM
I do hope this is not a horizontal surface. If it is, let me save you the aggravation of cutting the holes. Don't. You can't install receptacles on a horizontal surface. If it is a backsplash, then like Kobuchi said, from the back with an angle grinder and diamond blade. You will need to score the front for the exact breaking point, however.

lorider0
03-13-08, 11:52 PM
Yes it is for a back splash. Do you just cut or is it better to drill the corners first if so what kind ok drill bit do you use.
Bud Cline
03-14-08, 07:13 AM
Drilling granite can be risky business. For outlet boxes it is much easier and safer to simply saw the holes with a diamond blade.:)
Kobuchi
03-14-08, 11:56 AM
I'd suggested "masonry blade" - meaning the abrasive carbide kind that wears down... it's what I'm familiar with. Is diamond better for fine granite? All granite?