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.
How to cut hole in concrete block wall.
Cinder blocks can still be damaged by time and severe impact however.
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.
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.
Here s a few pictures of the right tool.
If your cut doesn t need to be exact use a cold chisel and hand sledge to cut the concrete.
I just like to show you a little trick some time you have to install dryer went through the concrete walls all what you need is a cut off wheel and a littl.
Cinder block is a useful construction material since it is normally lighter than solid concrete and yet still durable enough to last under normal stress conditions.
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.
Cutting a hole through a cinder block wall is a messy and time consuming project and it requires safety equipment such as ear plugs a respirator and eye protection.
Patching a hole in a cinder block wall requires some time along with the appropriate materials to make the repair.