Use the hammer and chisel to score or cut a groove into the block or paver on all sides.
How to cut concret block wall.
Either freehand the line or place a set square onto your slab and mark along the straight edge with your chalk.
Step 2 set up garden hose.
Strike the chisel on the score line until the material splits.
How to cut concrete blocks with circular saw.
This method is useful if you just have a few cuts to make.
You can split block or pavers with a drilling hammer and a mason s chisel.
Adjust your circular saw to be aligned with the chalk line and have a cutting depth of 50mm and let it start to reach max speed.
For small slabs of concrete use a piece of chalk to mark of the region that you need to cut.
Use relatively smooth grits to cut neatly but slowly and use coarser grits for a fast but less tidy cut.
Draw the outline of your opening with a straight edge and a piece of chalk.
Use a carpenter s level to make sure.
How to cut a concrete block wall with a concrete saw.
Don t force a blade into a cut.
How to cut a hole in cinder block walls step 1.
If your cut doesn t need to be exact use a cold chisel and hand sledge to cut the concrete.
Obtain a building permit from your local building authority.
Mark off the region to be cut with a piece of chalk.
The saws can be difficult to control but offer a wider range of cuts than many masonry and circular saws.
Start the cutting slowly and don t force the blade or.
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.
When fitted with a carbide grit blade reciprocating saws work well to cut and shape concrete block.
Step 3 cut the concrete block wall.
If you do not obtain the necessary permit a.
Mark off the cutting path with the chalk line.
A power saw produces a cleaner more even cut than does chiseling.
Step 1 mark section that is to be cut.
Make a series of passes until you have cut through the concrete block.