Double check your marks on both sides of the wall.
How to cut a hole through concrete wall.
Repeat step 1 on the other side of the opening.
4 tips for drilling or cutting through concrete walls 1.
I bolted the template to the concrete wall and hammer drilled each hole.
Use the right equipment.
I first made a plywood template marking the large circle.
A circular saw with a masonry blade can also be used to either score or completely cut through the block.
Don your goggles then insert the appropriate tungsten carbide masonry drill bit for your desired hole size into the hammer drill.
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.
In this video you ll see the cutting using.
Layout the cuts or locates the position of your hole before any cutting or drilling starts.
If your cut doesn t need to be exact use a cold chisel and hand sledge to cut the concrete.
Next get into position to drill by planting your feet firmly on.
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.
How to make cutouts through a concrete wall.
Learn how to cut into a basement floor the foundation of the house in order to do some plumbing for a bathtub.
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.
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.
Don t force a blade into a cut.
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.
Score the length of the cut three or four times with the chisel.