Author Topic: Cutting Granite  (Read 1461 times)

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Offline vkumar

  • Posts: 337
Cutting Granite
« on: April 06, 2018, 04:27 PM »
I need to replace a cooktop on my granite countertop. The new cooktop needs a 2 inch wider cutout than existing.

I am trying to get a a granite guy to come an do it but am having a heck of a a time to get someone to come and do it.

So not that I want to do this myself, but was wondering if I were to do it myself, how would I go about doing it.

1. A diamond blade
2. A worm gear saw ?  I have  worm gear Skilsaw. I also have a TS 75
3. A disc grinder . I have one.
4. Water sprayer?

If any of you have done this I would appreciate how to tips.

Vijay
Vijay Kumar
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Offline Brice Burrell

  • Posts: 7330
  • Remodeling Contractor
    • The Green and Dark Blue blog
Re: Cutting Granite
« Reply #1 on: April 06, 2018, 10:01 PM »
I have not do this myself but I know others that have.  Take the countertop outside and dry cut with a grinder with a diamond blade.  Be careful moving the granite, it is very heavy and fragile at the cooktop cutout area.     
Check out my new blog, The Green and Dark Blue Blog.

Offline vkumar

  • Posts: 337
Re: Cutting Granite
« Reply #2 on: April 06, 2018, 10:18 PM »
Brice thanks for your advice. Unfortunately this is an existing countertop and this will be new stove in an existing undersized cutout. No possibility of taking the counter out.
Vijay Kumar
Size Large

Offline denovo

  • Posts: 40
Re: Cutting Granite
« Reply #3 on: April 06, 2018, 10:34 PM »
I ended up doing this for a client who also couldn't find a granite guy for the job.  I used a grinder with a smooth rim diamond blade attached to a sled I made to travel down a guide rail for a straight 90 degree cut.  The guide rail was attached to the counter top using the gecko clamp.  I attached a vacuum hose to the sled to capture as much dust as possible and had an assistant spraying the blade with water while cutting.  It still produced a lot of dust but it worked and got the job done! 

Offline Peter_C

  • Posts: 595
Re: Cutting Granite
« Reply #4 on: April 07, 2018, 12:19 AM »
I would assume the edges are covered by the cook top? If so I would use a 4 1/2" grinder with a top quality blade. A dust collector/vacuum can be held by someone else, which should catch 85%. Two hands on the grinder and brace your arms.

Edit: Like this one.
https://www.amazon.com/gp/product/B00JBJ7C2K/ref=oh_aui_search_detailpage?ie=UTF8&psc=1

Edit 2: Round corners don't crack, but square ones do. Pre-drill the corners with a diamond bit and use plenty of water. You should be able to use a wet dry vac, a towel, or a bucket of some kind to contain the water. At least a 1/2" hole.
« Last Edit: April 07, 2018, 12:27 AM by Peter_C »

Offline vkumar

  • Posts: 337
Re: Cutting Granite
« Reply #5 on: April 07, 2018, 01:33 AM »
Thank you all. Very helpful.
Vijay Kumar
Size Large