Making a 6 inch hole in brick


  #1  
Old 05-19-24, 04:59 PM
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Making a 6 inch hole in brick

I needs a 6 inch+ hole for exhaust ductwork. This is double brick construction. I drilled a pilot hole from the inside and some of the face fell off the brick. That is fine as I'm removing that whole part but I want to avoid it on the rest of the job.

I was thinking to score the outside of my hole with a grinder. To remove whole bricks (which there will only be one) I was thinking to drill through the mortar around it in a few places (hammer drill with masonry bit). Any suggestions?

I was hoping to a void the soldier row but I don't think I can (due to a joist on the inside).

I believe we are talking 6 inches thick of brick.


 
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Old 05-19-24, 05:02 PM
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I don't see my pic...but when I hit edit it is there....confused....
 
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Old 05-19-24, 05:03 PM
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Check ebay for a 6 1/4 or 6 3/8" diamond hole saw.

Photos are not working. You can paste a link if you have them stored in the cloud.
 
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Old 05-19-24, 05:08 PM
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If you don't want to buy a core drill you can take a hammer drill and drill a series of holes around the perimeter of the hole you want to make. Then you can break out the bricks you want to remove. It will not make a nice hole but it will get the job done.
 
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Old 05-19-24, 05:16 PM
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Sadly, banging on bricks usually doesn't turn out well, since the small perimeter pieces will break loose and fall out, making a much bigger hole than you want.
 
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Old 05-19-24, 06:12 PM
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You may be able to rent a 6" diamond core bit and a suitable motor to drive it. You'd only need it for an hour or so.
 
 

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