How to Drill a Wall: Tools and Techniques
Drilling a hole in a wall is one of the basic tasks for any maintenance, construction and renovation work. In any case, you need to know how to make a hole in the wall of your home, office, or any space with a roof and floor.
The difficulty of this operation depends on the variety of the raw material: there are many types of masonry to drill. And above all, there are various reasons why you might need to perforate walls. There are those who need to insert plugs to hang a shelf, and there are those who want to run air conditioning pipes. Then there are those who have a hole in a load-bearing wall so they need to drill reinforced concrete.
In short, the needs are varied. Let's try to understand how to drill a wall and with what equipment. Above all, we must identify techniques and tools to complete the work properly, without having to resort to putty and paint.
Safety devices for drilling a wall
Before you start drilling the wall in concrete, stone or tufa, you must protect yourself. So it's right to get personal protective equipment to work safely. First, wear protective glasses made of plastic, with transparent and lightweight glass.
The common accident is the one that hits the eyes. Splinters and rock fragments fly around, so you need transparent, lightweight but resistant glasses to avoid eyeball injuries. Then wear gloves to protect your hands and if you're working on concrete blocks or stone it's worthwhile also having safety shoes with steel toe to prevent foot crushing.
Basic tools for making a hole in a wall
Regardless of special cases that might involve the presence of specific tools, the equipment for making holes in walls is quite simple. First of all, you need a high-quality drill with dual function: rotation and percussion. When you work on particularly hard surfaces like stone or concrete, you must use the second option. What does that mean?
Use the drill that allows you to
exploit not only rotation but also percussion impact that causes the drill bit to exert an impact force on the surface. This happens only for masonry work: never use percussion mode under other conditions. If you work on reinforced concrete and living stone, you can consider buying a percussion drill. That is, a power tool similar to a traditional drill but more robust and suitable for drilling hard materials.
The percussion drill is used in construction and renovation work where it is necessary to perforate concrete walls or stone floors. It's often found on construction sites but can be used by hobbyists or ordinary people who enjoy DIY.
Last element to consider: the drill bits for wall work. There are specific solutions for building work. Drill bits for stone, concrete and bricks have special shapes that differ from those for drilling wood or metal.
The characteristics of bits for wall and stone
Drill bits for building work are usually made of HSS and tungsten carbide. This solution makes the tool extremely resistant and capable of drilling hard materials without problems. Also, the bits have a special shape: arrow-like. This allows the force to be concentrated on a single point and improves performance. A few concrete examples?
First, you can consider the Super Granit and Extreme Hard Cut bits from Krino: they are perfect for drilling hard materials like granite, stone and concrete. So they must definitely be in your toolbox.
The features: the first has a diamond-sharpened insert with HRC alloy steel body, the second hard metal with diamond. If you're looking for something specific for concrete, the recommendation is clear: MAX 4, with four-edged insert, soldering with solder alloy at 1100°. The guarantee is a precise, clean and easy hole in extremely hard materials. Then there's the GresMaster, the specific bit for drilling porcelain stoneware but also tiles, tiles and ceramic. Here are the datasheets on Krino:
How to drill a wall, various options and solutions
To make a hole in the wall, you need to set the percussion mode, mark the area you want to drill and mount the right bit. Place it on the mark you've identified and start drilling. Hold the drill firmly with both hands.
Try to maintain a constant speed. Avoid jerky movements as these could damage the bit or cause problems with the work you're completing. Before starting make sure the drilling doesn't damage the structure in any way, for example you need to check that there are no pipes or electrical wires. There are specific tools (you can find everything in this guide) to assess this point: use them if you fear the drill could cause hard-to-repair damage.
