4" Hole In Brick

 
Thread Tools Search this Thread Display Modes
Old 02-25-2018, 09:51 AM   #1
90%-er
 
onmywayup's Avatar
 
Trade: Remodeling
Join Date: Aug 2012
Location: Southeast Michigan
Posts: 821
Rewards Points: 1,508

4" Hole In Brick


Need to make a 4" hole in some brick to get a bathroom vent duct through.

I've got the badass Bosch Bulldog hammer drill, just wondering what kind of bit I need here?

Diamond tip hole saw? Or make a series of smaller holes and chisel it out?

Sent from my SM-G950U using Tapatalk
onmywayup is online now  

Warning: The topics covered on this site include activities in which there exists the potential for serious injury or death. ContractorTalk.com DOES NOT guarantee the accuracy or completeness of any information contained on this site. Always use proper safety precaution and reference reliable outside sources before attempting any construction or remodeling task!

   

Advertisement

 

Old 02-25-2018, 10:01 AM   #2
Fugetaboutit
 
Lunicy's Avatar
 
Trade: Professional fixer upper
Join Date: Dec 2004
Location: NJ
Posts: 182
Rewards Points: 404

Re: 4" Hole In Brick


If you are just going through red brick, most big box stores will sell a core bit with carbide teeth for your Bulldog. I believe your bulldog is an SDS-Plus. This is a bit hard on it. I've done it before, with a cordless Milwaukee SDS Plus, but it's rough on the tool. Go slow, collect dust with a vacuum. (you don't want to be sneezing red dust for the next 3 days).

You are just doing 1, correct? If you plan on doing several, get the right tool.

ALSO, if you are running a dryer vent, you should make a 4 1/4 hole.

I've seen folks drill out a bunch of small holes in a circle, then chisel. It's kinda sloppy. Not precise at all. You may break off the area you need to anchor the hood to. If you use a core, it will make a very clean, precise hole.

Advertisement

Lunicy is offline  
Old 02-25-2018, 10:10 AM   #3
90%-er
 
onmywayup's Avatar
 
Trade: Remodeling
Join Date: Aug 2012
Location: Southeast Michigan
Posts: 821
Rewards Points: 1,508

Re: 4" Hole In Brick


Thanks. Need a good clean hole if possible, although it won't be visible from either side when I'm done with the back draft stopper and caulking around it.

This is for a basement bathroom vent fan. I'll check Depot tomorrow for that hole saw.

It is only one hole and I can take all the time I need on it. I'll bring my dust collector to keep it manageable.

Sent from my SM-G950U using Tapatalk
onmywayup is online now  
   
 
Old 02-25-2018, 10:12 AM   #4
Pro
 
rustyjames's Avatar
 
Trade: Constructioneer; LEED AP BD+C
Join Date: Aug 2008
Location: Central NJ
Posts: 1,228
Rewards Points: 1,548

Re: 4" Hole In Brick


While a core bit hole would certainly be cleaner, it could be done "good enough" with a series of holes and finished with a chisel. Most vent kits have some kind of collar that would hide even the sloppiest holes.
rustyjames is online now  
The Following 2 Users Say Thank You to rustyjames For This Useful Post:
Framer53 (02-25-2018), Randy Bush (02-25-2018)
Old 02-25-2018, 10:51 AM   #5
Pro
 
Randy Bush's Avatar
 
Trade: Exterior Remodeling
Join Date: Mar 2011
Location: Great Falls, MT
Posts: 4,808
Rewards Points: 958

Re: 4" Hole In Brick


Quote:
Originally Posted by rustyjames View Post
While a core bit hole would certainly be cleaner, it could be done "good enough" with a series of holes and finished with a chisel. Most vent kits have some kind of collar that would hide even the sloppiest holes.
Last one I did was this way, turned out ok .
Randy Bush is online now  
Old 02-25-2018, 11:47 AM   #6
Pro
 
Pearce Services's Avatar
 
Trade: Commercial Loading Dock and Door Contractor
Join Date: Nov 2005
Location: Southeastern Massachusetts
Posts: 1,353
Rewards Points: 54

Re: 4" Hole In Brick


About a year ago, I bought a 4" diameter core bit that threads into a 7" grinder, and it is a bit slower, but once it started to grab, it cut nicely, for occasional holes brick it would be a good investment $150 I got mine at Pro Tool in Waltham MA I cant remember the brand
__________________
Kevin

www.BadcoDoors.com
Pearce Services is offline  
Old 02-25-2018, 01:48 PM   #7
Pro
 
tjbnwi's Avatar
 
Trade: Remodeling
Join Date: Feb 2009
Location: Cedar Tucky, Indiana
Posts: 7,995
Rewards Points: 3,410

Re: 4" Hole In Brick


You should use a 4-1/8" holes saw for the duct.

I use a Bosch;

https://www.homedepot.com/p/Bosch-4-...G418/203570978

Tom
tjbnwi is online now  
Old 02-25-2018, 03:42 PM   #8
90%-er
 
onmywayup's Avatar
 
Trade: Remodeling
Join Date: Aug 2012
Location: Southeast Michigan
Posts: 821
Rewards Points: 1,508

Re: 4" Hole In Brick


Thanks fellas. I'm gonna buy the 4 1/8" bit. This is the third or fourth time I could have used it. The other times we just came up with alternative plans, but there really are no other good options on this house. I know we'll use it again in the future.

And I'm kinda looking forward to drilling it, in a weird way. Even if it will never really be seen by anyone else, if I do my finish work right.

Sent from my SM-G950U using Tapatalk
onmywayup is online now  
Old 02-25-2018, 04:23 PM   #9
Capra aegagrus

 
Tinstaafl's Avatar
 
Trade: Remodeler
Join Date: Jan 2008
Location: Central Pennsylvania
Posts: 22,161
Rewards Points: 2,047

Re: 4" Hole In Brick


A few years ago, I happened to be present when a quartz countertop guy was boring fixture holes with a bit that attached to a 4" angle grinder. He wasn't happy with its performance and grabbed a new one.

I still have the bit he discarded, and it cuts block & brick like butter. Only maybe 1 1/8" diameter, so it takes several plunges for a larger hole, but it was free and takes up very little storage space.
Tinstaafl is online now  
Old 02-25-2018, 04:29 PM   #10
Pro
 
tjbnwi's Avatar
 
Trade: Remodeling
Join Date: Feb 2009
Location: Cedar Tucky, Indiana
Posts: 7,995
Rewards Points: 3,410

Re: 4" Hole In Brick


Quote:
Originally Posted by onmywayup View Post
Thanks fellas. I'm gonna buy the 4 1/8" bit. This is the third or fourth time I could have used it. The other times we just came up with alternative plans, but there really are no other good options on this house. I know we'll use it again in the future.

And I'm kinda looking forward to drilling it, in a weird way. Even if it will never really be seen by anyone else, if I do my finish work right.

Sent from my SM-G950U using Tapatalk
I use a cordless drill. Prefer to not have my wrist broken if it binds.

I find for a hole saw this size it is best to bore the hole in a piece of 1/2" or 3/4" plywood. I hot glue this drill guide on the wall. Hit the hot glue with DNA and it will pop right off when done.

Tom
tjbnwi is online now  
The Following 6 Users Say Thank You to tjbnwi For This Useful Post:
AustinDB (02-25-2018), onmywayup (02-25-2018), Pearce Services (02-25-2018), Randy Bush (02-25-2018), Tinstaafl (02-25-2018), Xtrememtnbiker (02-25-2018)
Old 02-25-2018, 09:53 PM   #11
Pro
 
builditguy's Avatar
 
Trade: Carpentry
Join Date: Nov 2013
Location: Missouri
Posts: 1,790
Rewards Points: 406

Re: 4" Hole In Brick


I would just drill several small holes and chisel it out. Maybe not as fancy as a 4 1/8Ē hole saw, but it is cheap and pretty easy.
I canít even count he times Iíve done it.
Thursday was the last time. Worked just fine.


Sent from my iPhone using Tapatalk
builditguy is offline  
Old 02-25-2018, 10:35 PM   #12
EVIL GENIUS
 
Michaeljp86's Avatar
 
Trade: General Contractor, electrical, fabrication, & wel
Join Date: Apr 2007
Location: Southwest Michigan
Posts: 2,515
Rewards Points: 4,892

Re: 4" Hole In Brick


Dont buy the spyder bits, they say they will cut it but dont.
__________________
I am just a vessel from which genius flows -Homer Simpson

Global warming is a myth, like evolution and the metric system.
U.S. Coast Guard
Michaeljp86 is offline  
Old 02-25-2018, 10:36 PM   #13
EVIL GENIUS
 
Michaeljp86's Avatar
 
Trade: General Contractor, electrical, fabrication, & wel
Join Date: Apr 2007
Location: Southwest Michigan
Posts: 2,515
Rewards Points: 4,892

Re: 4" Hole In Brick


opps multiple post
__________________
I am just a vessel from which genius flows -Homer Simpson

Global warming is a myth, like evolution and the metric system.
U.S. Coast Guard
Michaeljp86 is offline  
Old 02-26-2018, 06:27 PM   #14
Fugetaboutit
 
Lunicy's Avatar
 
Trade: Professional fixer upper
Join Date: Dec 2004
Location: NJ
Posts: 182
Rewards Points: 404

Re: 4" Hole In Brick


Quote:
Originally Posted by Michaeljp86 View Post
Dont buy the spyder bits, they say they will cut it but dont.
Truth, I returned mine

Advertisement

Lunicy is offline  


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
What is your favorite brick & why? fjn Masonry 43 09-09-2013 12:14 PM
Post Hole Auger Help openhearth Tools & Equipment 9 07-18-2012 12:46 PM
Up Against A Brick Wall Meticularius New Member Introductions 5 09-28-2011 05:06 PM
something for the masonry department dakzaag Masonry 2 05-08-2009 09:23 PM
Hole in Brick bigtick Masonry 4 11-28-2005 12:43 PM

Join Now... It's Fast and FREE!

I am a professional contractor
I am a DIY Homeowner
Drywall Talk is for
PROFESSIONAL CONTRACTORS ONLY!

At DrywallTalk.com we cater exlusivly to professional contractors who make their living as a contractor. Knowing that many homeowners and DIYers are looking for a community to call home, we've created www.DIYChatroom.com DIY Chatroom is full of helpful advices and perfect for DIY homeowners.

Redirecing in 10 seconds
No Thanks
terms of service

Already Have an Account?