HOW TO CHOOSE THE RIGHT DRILL

Renovation
Anna Urban

The corded drills is the king of the toolbox of any date lover. It is indispensable for all work where you need to drill and screw in, such as fixing a shelf or mounting a cabinet.

There are also other aspects to take into account when choosing the drill:
power: it is a fundamental element of choice, because the ability to perform certain jobs depends on it. In the case of wire drills, a power of up to 600W is suitable for light domestic work, such as fixing a wall lamp or drilling soft materials such as wood and plastic. A power of up to 800W allows for medium-demanding work such as drilling wood, concrete and steel. Drills up to 1000W and more are required for drilling concrete, metal and wood.

Percussion

It is a mechanism that makes the drill move back and forth, striking and crushing the material. It allows to drill very hard and compact materials, such as cement, concrete, bricks and stones. The percussion is measured in strokes per minute. Powerful models can exceed 50,000 strokes per minute, but for occasional work a 20,000 strokes per minute model is sufficient;

The reversibility

By moving the lever, it allows the tip to rotate in both directions. This function allows the drill to be screwed, unscrewed or freed if it locks during drilling on particularly hard materials.

The spindle

This is the rotating mechanism where the drill bits and screwdriver inserts are fixed. It can be rack-and-pinion, to be closed with the appropriate key, or self-locking, to be tightened with the hands and useful to quickly change bits and accessories.

Engine speed

It is measured in revolutions per minute, i.e. the number of rotations made by the drill bit, and affects the result obtained, the time taken and the effort spent.

The maximum diameter of the hole

It is the drilling capacity, and depends on the power of the device, the presence of percussion, the maximum speed of revolutions per minute and the maximum size of the tip supported by the spindle;

The tightening torque

Is the ability to tighten. The higher this value, the more the device is capable of screwing on all types of material.

To make the work more comfortable and practical, at the time of purchase it is necessary to try to hold the drill and simulate its use, evaluating if it is easy to handle and if the controls are easy to reach. A non-slip rubber or silicone grip guarantees a firm and secure grip in all working conditions, even with sweaty or damp hands. In addition, on some models there is a double handle, which provides an even firmer grip and greater control when drilling. Ease of use also depends on the weight: lighter drills are more manageable but less powerful, making them suitable for small jobs, while drills with higher power and performance are heavier.

Finally, pay attention to the safety regulations to be checked when purchasing a drill. The CE marking indicates the products that meet the safety standards set by the European Community. The double insulation identifiable by the symbol of two squares inserted one inside the other, declares that the motor is perfectly insulated electrically in all its components.

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