How To Use The Screwdriver Drill

Everything you need to know about one of the most important DIY power tools, including tips for proper use.

The screwdriver drill is considered the “King of power tools” as it can be used for a wide range of applications, both in the professional and artisan field, as well as in hobby and amateur.


Its peculiar feature is that of combining the functionality of a drill, and therefore the ability to drill holes in different types of material, with the classic function of the screwdriver; another unique feature of the screwdriver drill, moreover, is the possibility of reversing the direction of rotation of the spindle, so that it can also be used to loosen and unscrew, as well as to tighten the screws.

Consequently, you can easily understand why this power tool is so widespread and appreciated, to the point of being considered fundamental. Anyone interested in buying DIY tools should start with a good screwdriver.

Which type of screwdriver to choose?


The first step towards a correct use of the screwdriver drill is to choose the model that suits your needs. The best screwdriver drill , in fact, is not the one characterized by the greatest power, but the one that best suits the type of use for which it is required.

In fact, buying a professional model model, unless it is used only sporadically and for small-scale jobs, would be a waste, especially from an economic point of view.
Conversely, if you have professional needs, but to save on expenses, buy a low-cost screwdriver, you will have wasted money in any case; in fact, in a short time, the cheap tool you bought to save money will end up irreparably damaged due to intensive use and therefore you will be forced to buy a new tool.

To choose a good screwdriver you need to pay particular attention to two fundamental parameters: the first is the maximum rotation speed that can be reached by the spindle, while the second is the tightening torque; so let’s examine these two characteristics in more detail.

Drill-drivers offer the possibility of adjusting the rotation speed, which is important since the methods of use require different speeds; for standard use as a drill, in fact, a higher speed is required than that required for screwing.

The rotation speed also affects the intended use of the tool; Drill-drivers for hobby and amateur use are almost all characterized by a maximum speed that rarely exceeds 1,400 revolutions per minute, but a good screwdriver drill for professional use should have a maximum speed of no less than 1,650 revolutions per minute.
The twisting moment, on the other hand, or tightening torque, is the force that the drill / driver applies to the rotation, and is expressed in Nm, that is Newton per meter; a good hobby-grade drill / screwdriver must have a tightening torque of no less than 30 Nm, while the models for intensive and professional use must have a torque of at least 70 Nm, even better if higher.

A classic example of a professional drill driver for intensive use is the M18FPD Fuel , produced by the American company Milwaukee, which is characterized by a maximum speed of 2,000 rpm and a tightening torque of 135 Nm.

As for the hobby category, however, one of the most popular models is the Black + Decker BDCHD18BOA-QW , which has a maximum speed of 1,400 rpm and a tightening torque of 40 Nm.

How to change the tips on the spindle


Another fundamental thing to learn, for the correct use of the screwdriver drill, is how to manage the chuck when it is necessary to replace the different tips and bits according to the needs of the case. Unlike a normal drill, in fact, the spindle of the screwdriver drill has two peculiar characteristics: the possibility of reversing the direction of rotation and the friction.

The inversion of the direction of rotation is controlled by means of a special selector located between the handle and the upper part of the tool, where the motor with the rotating shaft is located; once set, it allows you to completely loosen or unscrew the screws, thus completing the functionality of the tool.

However, this is not its only purpose; the spindle, in fact, has the classic locking mechanism by rotating it. To mount a bit, therefore, you need to insert it into the hole when the blocks are loosened and use one hand to keep the spindle and the bit stationary simultaneously while with the other you press lightly on the start button. This way the rotation will act on the tip locking mechanism, securing it in place.

The same procedure must be carried out to remove the tip, only in this case it is necessary to act on the selector in order to reverse the direction of rotation; in this way, instead of tightening, the blocks are loosened allowing the removal of the tip in use and the insertion of the one destined for the next job.
The clutch is another essential component, not only for the purpose of replacing the tips but also for the correct use of the screwdriver mode. In fact, normal drills cannot be used as screwdrivers precisely because they are devoid of the clutch whose main purpose, in addition to allowing a gradual start, is precisely to stop the rotation of the bit once the screw has reached the limit stop. .


The applications of the screwdriver drill


The most widespread use of the screwdriver drill is that of assembling furniture or other objects, including mechanical ones, or for the installation of various kinds of systems. The possibility of mounting numerous types of bits, above all, makes it extremely versatile in this respect, as well as capable of being used for extremely precise work.

The drill functionality, of course, also allows him to drill different types of materials, from wood to metal, using the relevant drilling bits; as far as this method of use is concerned, however, the category to which it belongs greatly affects the yield.

The highest performance, in fact, is offered by professional screwdrivers, which are decidedly more powerful and also have the percussion mode; this does not mean that even in the hobby sector you can find percussion drill / drivers with, after all, fairly good performance.

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