How and with what to drill into natural stone and install fasteners into it

How and with what to drill into natural stone and install fasteners into it

Granite, and most other types of natural stone, are much more difficult to drill than concrete or metal. Since this rarely needs to be done, most simply do not know how to do it, as well as how to install fasteners into the resulting hole. Let's look at the intricacies of drilling stone.

What you will need:

  • carbide drill with diamond coating;
  • perforator;
  • chemical anchor;
  • vacuum cleaner, compressor or brush.
How and with what to drill into natural stone and install fasteners into it

Natural stone drilling process

Drilling is performed with a diamond-coated carbide drill using a hammer drill in percussion drilling mode.

How and with what to drill into natural stone and install fasteners into it

To prevent the drill from sliding to the side at first, you can feel a natural depression in the stone with your finger and rest against it. This will eliminate the need for core punching.

How and with what to drill into natural stone and install fasteners into it

It is best to install a chemical anchor in the stone. For this reason, the hole should be exactly as needed, not deeper. It is advisable to mark the aiming depth on the drill with an duct tape mark so as not to overdo it.

How and with what to drill into natural stone and install fasteners into it

After drilling, it is important to clean the hole from dust, preferably with a vacuum cleaner or by blowing out the dust with a compressor. But if this is not the case, you can clean the hole with a brush.

How and with what to drill into natural stone and install fasteners into it

Next, a chemical anchor is filled into it and the necessary fasteners are installed.

How and with what to drill into natural stone and install fasteners into it
How and with what to drill into natural stone and install fasteners into it
How and with what to drill into natural stone and install fasteners into it

After the composition has set, the bolt or stud can be used at full load. It is risky to use expansion anchors for stone, as it can break.

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