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