If your cut doesn t need to be exact use a cold chisel and hand sledge to cut the concrete.
How to cut a hole through concrete wall.
Repeat step 1 on the other side of the opening.
Score the length of the cut three or four times with the chisel.
How to make cutouts through a concrete wall.
In this video you ll see the cutting using.
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.
Layout the cuts or locates the position of your hole before any cutting or drilling starts.
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.
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 going to cut a hole or drill through a concrete wall use the right tools to.
Don your goggles then insert the appropriate tungsten carbide masonry drill bit for your desired hole size into the hammer drill.
4 tips for drilling or cutting through concrete walls 1.
Next get into position to drill by planting your feet firmly on.
Don t force a blade into a cut.
I first made a plywood template marking the large circle.
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.
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.
Double check your marks on both sides of the wall.
I then used a wood bit to drill a series of holes in the template closely spaced.
I bolted the template to the concrete wall and hammer drilled each hole.
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.