Slowly guide the blade along the line until you get to a corner.
How to cut through 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.
Double check your marks on both sides of the wall.
Core saw or drill a core drill with a diamond bit is the best option for round cuts that you can pass wires water lines or other things through.
If you are going to cut a hole or drill through a concrete wall use the right tools to reduce the chance of damage to the wall.
How to make cutouts through a concrete wall 1.
Mark the wall where you plan to make your cuts using a tape measure to verify the exact location and dimensions for.
Mark the places you want to cut on the concrete slab either using chalk line good for long straight edges or chalk.
Turn on the saw and slowly guide the blade into the concrete.
You can also use it to cut through brick and granite.
Repeat step 1 on the other side of the opening.
A huge water cooled cutting saw attaches to each rail and is slowly moved up and down the rails.
Apply the line as thick as possible.
Anyway the landord was adding an overhead door for the next tenant and the concrete cutters came in one morning anchored tracks to the wall and ran the rail saws in about 8 hours they had a 12 ft overhead door cut but like above left the concrete in the hole.
Score the length of the cut three or four times with the chisel.
Hold the concrete saw up to the wall and line up the blade with the line.
If your cut doesn t need to be exact use a cold chisel and hand sledge to cut the concrete.
Cutting the foundation wall the concrete cutting contractor used a hammer drill to drill and bolt two parallel metal rails to the concrete wall.
You ll ideally run a trickle of water.
Hang plastic sheets over.
A diamond blade will be strong enough to cut through concrete.
Don t force a blade into a cut.
Remove the saw blade and start in the other direction following the same procedure.