Menards and other places rent core drills for large holes in concrete.
Making hole in concrete wall.
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.
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.
These holes will mark the boundaries of the opening and help guide your cuts.
Drill through each corner of your cutout using a rotary hammer equipped with a masonry bit.
Easiest way is to call diamond drilling or a similar company and have them come out and drill all your holes for a few hundred dollars.
The hole should be slightly smaller than the maximum width of the.
After hearing that i seriously considered just gluing a piece of plywood over it and calling it a day.
The guys at home depot had a lot of fun lamenting the fact that the hole existed to begin with and then suggested that i build a mold on one side of the wall and fill it in with a pour of concrete.
Sorry i just re read your post.
Match the correct anchor size to that of the concrete screw.
5 line up the blade of a.
Here s a few pictures of the right tool.
Expand the drill hole to accommodate the anchor.
If necessary tap.
The size depends on the application.
You will find most core drill bits coming in different sizes such as 2 inches or 4 inches.
A core drill is simply a drill bit used for making the large holes in concrete and masonry materials.