How To Drill A 4 Inch Hole In Concrete Wall

Then drill a shallow pilot hole using a low speed or short bursts.

How to drill a 4 inch hole in concrete wall.

Drill the guide hole to a depth of 1 8 to inch. Next turn on the drill s hammer function and start drilling applying firm but not forceful pressure. Do not force the drill. Once you have the right drill and drill bit mark the spot on the concrete you want to drill through.

Thicker points are reinforced with re bar. As much as you will be using the core drill a standard drill is still required in the initial stages to make the guide hole before you can fully switch to a core drill. 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. When you have to drill large holes into concrete such as the 2 inch or 4 inch holes you will need to use a core drill.

We will discuss the process later in this. Drill forward with steady light pressure. 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. To drill into concrete use a hammer drill with a carbide tipped masonry bit.

I need to drill a 4 hole in the foundation of our house to vent a bath fan in the basement. Step 4 when you start with a guide hole at least 1 8 inch deep your drill will be easier to control but all the same continue to operate the drill with a steady light but firm touch so you re. Blow away dust that accumulated in the guide hole.