Insert the concrete screw into the anchor and drive into the wall until secure.
How to drill hole through concrete wall.
Next get into position to drill by planting your feet firmly on.
If necessary tap in lightly with a hammer.
Once the core drill starts to go through the concrete wall maintain a smooth low speed.
With the core drill in.
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.
Here s a few pictures of the right tool.
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.
Drill bits small holes that are only about 1 2 inch in diameter are drilled directly into the concrete.
Besides the core drill you will need to rent a 1 2 inch hammer drill to drill the holes for the lead anchors that you will use to use to anchor the core drill to the wall.
After the core drill has gone through the wall up to about 0 5 inches it is advisable to unscrew the guide drill bit at this point.
Place your drill on the mark and drill briefly using a low speed if your machine has speed control or in short bursts if it doesn t.
Mark the point on the wall where you want to drill using a soft pencil with a small dot or cross.
2 drill a pilot hole.
Mark the spot on the wall or another surface where you d like to place the hole.
The hole should be slightly smaller than the maximum width of the anchor.
Here s how to drill into concrete with a regular old drill.
Put a small masonry bit into your drill.
Remove any concrete dust then press the anchor into the hole until it is flush with the surface.
Start drilling slowly with the attached guide drill on the core drill.