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.
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.
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.
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.
How to make cutouts through a concrete wall.
4 tips for drilling or cutting through concrete walls 1.
Don your goggles then insert the appropriate tungsten carbide masonry drill bit for your desired hole size into the hammer drill.
Layout the cuts or locates the position of your hole before any cutting or drilling starts.
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.
Next get into position to drill by planting your feet firmly on.
Layout all of your cuts.
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.
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.
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.