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Old 11-13-2016, 12:19 PM   #1
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Cutting granite countertop


I just got a new oven and the space for it is about 1/4 inch too small, so I need to cut the granite counter top to make it fit. Do I have to use a wet saw or can I just put a diamond blade on my worm drive saw and use that? I also have an angle grinder, but it seems like the circular saw will be more stable. Thanks
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Old 11-13-2016, 12:29 PM   #2
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Re: Cutting granite countertop


Need mo data.

Can you provide a photograph of the part that needs cut.

They do make diamond sanding pads that might work better, you have more control, but it takes more elbow grease.

I am leery of any power equipment in a home, making quite a mess, and dangerous to the area, tossing the cuttings everywhere.


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Old 11-13-2016, 01:03 PM   #3
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Re: Cutting granite countertop


Can you remove the section of the counter top? Or too big?
Any dry cutting will be incredibly dusty. Water will have its own issues. If I were unable to remove, think I would be calling a granite counter mfg/installer.
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Old 11-13-2016, 01:09 PM   #4
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Re: Cutting granite countertop


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Can you remove the section of the counter top? Or too big?
Any dry cutting will be incredibly dusty. Water will have its own issues. If I were unable to remove, think I would be calling a granite counter mfg/installer.
The left side is a small piece of granite, that I should be able to remove and bring outside to cut. I'm going to pick up a wet circular saw. I know that people like to buy from harbor freight, but I'd rather get a better tool, so I have it for the future. Any ideas on what saw to get? I don't mind spending $150.
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Old 11-13-2016, 01:14 PM   #5
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Re: Cutting granite countertop


Consider renting one?
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Old 11-13-2016, 01:15 PM   #6
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Re: Cutting granite countertop


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Consider renting one?
That'd be the smart thing to do, but anytime I have an excuse to buy a new tool, I take advantage.
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Old 11-13-2016, 03:31 PM   #7
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Re: Cutting granite countertop


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That'd be the smart thing to do, but anytime I have an excuse to buy a new tool, I take advantage.


Not a very smart buy unless you plan on a lot of masonry work in the future.


http://www.cpoindustrialpowertools.c...FdQ6gQodKQMKPQ
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Old 11-13-2016, 05:06 PM   #8
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Re: Cutting granite countertop


Is your cut going to be visible after the oven is in place ? I would be surprised if your cut does not have small chips on the top edge, and a rough surface on the cut. You may need to polish that cut surface if its visible.
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Old 11-13-2016, 05:19 PM   #9
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Re: Cutting granite countertop


I did this with a diamond on my regular circular saw and a hose taped to the granite. Had the hose putting a very small amount of water on the slab and it worked fine.

No chips and a nice straight cut.


The water is there to keep the blade cool, and you can do it without the water, but the blade will be shot in no short order, and you will ave a huge dust cloud.


Yes, I've dry cut before as well. It's just messier.


Patience.....
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Old 11-13-2016, 05:29 PM   #10
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Re: Cutting granite countertop


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Originally Posted by joeg679 View Post
The left side is a small piece of granite, that I should be able to remove and bring outside to cut. I'm going to pick up a wet circular saw. I know that people like to buy from harbor freight, but I'd rather get a better tool, so I have it for the future. Any ideas on what saw to get? I don't mind spending $150.
If you can get the small piece off to take out.

I would suggest that you find a ROCK SHOP locally, and hire them to slice a thin piece off, they have the perfect equipment for this.

Or a Monument Works, or a Countertop shop, or even a hobbyist with a diamond rock saw.

There is little need to buy an expensive tool to only cut once, and sell it as a used toy for someone else.


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Old 11-13-2016, 07:08 PM   #11
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Re: Cutting granite countertop


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Originally Posted by de-nagorg View Post
If you can get the small piece off to take out.

I would suggest that you find a ROCK SHOP locally, and hire them to slice a thin piece off, they have the perfect equipment for this.

Or a Monument Works, or a Countertop shop, or even a hobbyist with a diamond rock saw.

There is little need to buy an expensive tool to only cut once, and sell it as a used toy for someone else.


ED

I actually have to cut both sides, so I won't be able to just take the small piece off and cut that outside. I'm just going to call a granite installer and see if they'll come by to cut the 2 sides for me. Thanks for your help guys!
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Old 11-13-2016, 07:21 PM   #12
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Re: Cutting granite countertop


I've dry cut 3cm granite inside plenty of times....... have a helper holding a shop vac mitigating the dust... and throw some plastic around to protect complex places that collect dust....

it's a little messy.... but that is what your granite guy is going to do...
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Old 11-13-2016, 07:26 PM   #13
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Re: Cutting granite countertop


I cut a granite bath vanity top once. At least it was suppose to be granite. Used a masonry dry blade made by Hilti for brick, masonry, granite and fire brick. Cut outside and had no problem. Probably made a cloud of dust which I simply ignored. To reduce chances of chipping suggest you cut from bottom side. If the dust bothers you, simply have an assistant dribble some water ahead of the saw from a large sponge.
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Old 11-13-2016, 07:37 PM   #14
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Re: Cutting granite countertop


Or as HK says.... that works also.

I have a wet saw also, besides a dry cut diamond blade.. I use only outside or if for some reason the flooring cabinetry will tolerate water.

I'd have to go check, but it was not expensive... and certainly not made for production work,,, don't recall the name... maybe something like "workforce"

It's nothing more than a normal double insulated saw that additionally has a GFI on the cord, and a little garden hose type hookup that direct water at the blade/cut.

It might give a little better cut than my dry blade.... either cut has to be polished if it is going to show.
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Old 11-14-2016, 01:50 AM   #15
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Re: Cutting granite countertop


I live near a place where I get free granite scraps. I've cut plenty of it. I use a diamond blade in a circular saw, and I run a water hose over the cut (while avoiding getting the saw wet). It works.
I eventually ruined one saw using it for this purpose, but I cut a lot with it before the bearing started to fail. It wasn't an expensive saw anyway.
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