Double check your marks on both sides of the wall.
How to cut a hole through concrete wall.
I have used long 1 2 inch rotary hammer drill bits to drill a series of holes and then a hammer and chisel to remove what s left.
Layout the cuts or locates the position of your hole before any cutting or drilling starts.
Mark the wall where you plan to make your cuts using a tape measure to verify the exact location and dimensions for the new opening.
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.
I bolted the template to the concrete wall and hammer drilled each hole.
If you are going to cut a hole or drill through a concrete wall use the right tools to.
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.
Score the length of the cut three or four times with the chisel.
A circular saw with a masonry blade can also be used to either score or completely cut through the block.
Use the right equipment.
Don t force a blade into a cut.
4 tips for drilling or cutting through concrete walls 1.
Next get into position to drill by planting your feet firmly on.
Don your goggles then insert the appropriate tungsten carbide masonry drill bit for your desired hole size into the hammer drill.
Layout all of your cuts.
In this video you ll see the cutting using.
I first made a plywood template marking the large circle.
Learn how to cut into a basement floor the foundation of the house in order to do some plumbing for a bathtub.
Repeat step 1 on the other side of the opening.
I then used a wood bit to drill a series of holes in the template closely spaced.