Make a series of passes until you have cut through the concrete block.
How to cut through a concrete block wall.
Score the length of the cut three or four times with the chisel.
Turn on the saw and slowly guide the blade into the concrete.
Step 5 insert the masonry saw blade in one of the holes and cut along the line.
Hold the concrete saw up to the wall and line up the blade with the line.
When fitted with a carbide grit blade reciprocating saws work well to cut and shape concrete block.
Cut through the remaining lines until you have created the opening.
For a larger project or more accurate cuts a circular saw with a concrete blade is a good option.
Mark the cut and clamp the stone or paver to a stable work surface.
The saws can be difficult to control but offer a wider range of cuts than many masonry and circular saws.
Builders use many techniques to run pipe through concrete block walls but the easiest and most efficient way is to use a core drill.
Cut the block allowing the saw and blade to do most of the work don t apply too much force.
Don t force a blade into a cut.
Core drills are expensive tools and not something that the.
Use relatively smooth grits to cut neatly but slowly and use coarser grits for a fast but less tidy cut.
Remove the saw blade and start in the other direction following the same procedure.
Slowly guide the blade along the line until you get to a corner.
Concrete is a mix of sand gravel cement and water and it is everywhere.
A power saw produces a cleaner more even cut than does chiseling.
A circular saw with a masonry blade can also be used to either score or completely cut through the block.
If your cut doesn t need to be exact use a cold chisel and hand sledge to cut the concrete.
Cut around the entire block with the saw then adjust it so it will cut 1 4 inch to 1 2 inch deeper into the block.