Use the right equipment.
How to cut a hole through concrete wall.
Next get into position to drill by planting your feet firmly on.
If you are going to cut a hole or drill through a concrete wall use the right tools to.
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.
A circular saw with a masonry blade can also be used to either score or completely cut through the block.
I first made a plywood template marking the large circle.
Repeat step 1 on the other side of the 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.
In this video you ll see the cutting using.
Score the length of the cut three or four times with the chisel.
Double check your marks on both sides of the wall.
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 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.
4 tips for drilling or cutting through concrete walls 1.
Don t force a blade into a cut.
If your cut doesn t need to be exact use a cold chisel and hand sledge to cut the concrete.
How to make cutouts through a concrete wall.
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 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.