Score the length of the cut three or four times with the chisel.
How to cut hole in concrete block wall.
Set the depth stop on the drill to inch longer than the depth you want your hole to be.
The walls at our new place are 6 inch thick concrete it s an old naval base and we needed a few holes for vents.
Periodically pull the drill out to brush away concrete dust.
I just like to show you a little trick some time you have to install dryer went through the concrete walls all what you need is a cut off wheel and a littl.
Create a hole for your outlet box.
When concrete blocks are laid the hollow sections line up and.
I ve hammer drilled through concrete to sink anchors but a 4 inch diameter hole is a little intimidating until you have the right tool.
If the drill does not have a.
Don t force a blade into a cut.
If you are working with a concrete block foundation wall rather than solid concrete you may be able to use a carbide tipped core bit on a hammer drill to cut through the block walls.
How to cut a hole in cinder block walls hunker.
If your cut doesn t need to be exact use a cold chisel and hand sledge to cut the concrete.
Obtain a building permit from your local building authority.
Considering you can bore a two inch hole in under a minute using a hammer drill pausing every 15 to 20 seconds should suffice.
Use a carpenter s.
If you do not obtain the necessary permit a building inspector may impose.
How to install an outlet box in concrete block.
Draw the outline of your opening with a straight edge and a piece of chalk.
Trace a line to give a guide for breaking the block.
Plan your cable run through the hollow spaces where the blocks overlap.