Expand the drill hole to accommodate the anchor.
How to cut a hole in concrete block wall.
How to cut a hole in cinder block walls hunker.
Chisel out any loose pieces of cinder block around the edges of the hole and brush away any loose debris with a nylon brush.
Draw the outline of your opening with a straight edge and a piece of chalk.
Step 2 combine a mortar mix with water in accordance with the mortar instructions.
The hole should be slightly smaller than the maximum width of the anchor.
Obtain a building permit from your local building authority.
Don t force a blade into a cut.
Match the correct anchor size to that of the concrete screw.
Here s a few pictures of the right tool.
Keep firm pressure on the drill during operation.
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.
Press the tip of the drill bit firmly against the surface of the block and press the drill s trigger.
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.
Release the trigger and remove the drill.
Score the length of the cut three or four times with the chisel.
Drill through each corner of your cutout using a rotary hammer equipped with a masonry bit.
5 line up the blade of a.
These holes will mark the boundaries of the opening and help guide your cuts.
A circular saw with a masonry blade can also be used to either score or completely cut through the block.
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.
If necessary tap in lightly with a hammer.
Remove any concrete dust then press the anchor into the hole until it is flush with the surface.
If your cut doesn t need to be exact use a cold chisel and hand sledge to cut the concrete.