Certainly in any house there are various tools necessary to facilitate repair operations and household needs. With it, it is easier and faster to nail a bolt, screw a bolt, etc. And since many of them have considerable dimensions, the acquisition of universal devices is considered topical. To them it is possible, for example, to carry an electric drill-screwdriver.
What is an electric drill?
Roughly speaking, the drill-screwdriver is a tool whose main goal is to drill holes of the desired diameter in different materials. It can be wood, metal, plastic, ceramics ( tiles ), bricks and even concrete (some models). However, performing the usual function for the drill, the device, having a special cartridge, where the drill is put on, can still be used to twist and unscrew various threaded fasteners (for example, screws, screws). With a suitable nozzle, this practically universal device is also used for mixing mortars, grinding and cleaning of various surfaces.
How to choose an electric drill?
If you are thinking about the need for such a tool in your home, before buying, first of all, take into account your own needs and requirements. The fact is that the modern market offers a wide variety of devices. For example, there are household and professional tools. The first are sufficient to solve household problems, simple and periodic repairs. If you are waiting for frequent and large loads during construction, then it's worth to buy a professional model that has high power, endurance and reinforced body. It is clear that the cost of professional drills, screwdrivers exceeds households by two or three times. In addition, pay attention to the technical parameters, which can generally characterize the work and direction of the device. The fact is that some models perform better the function of a drill, and some - a screwdriver. Therefore, before buying it is important for you to decide which side - drilling or twisting - is more important to you. So, for example, without knowing how to choose a electric screwdriver, pay attention to the reproduced number of revolutions per minute. If the device is at least 1000 rpm, it is good as a drill. If you need a screwdriver more, pay attention to the products with 500 rpm.
Equally important, we can consider such a characteristic as power. For home use, the optimal model will be an electric drill-screwdriver with a power of 500-800 watts. Naturally, professional devices are much more powerful.
Many drill-screwdrivers work from an electrical network. However, in some places it is inconvenient or impossible to work with such devices. Therefore, we recommend that you take a closer look at the battery. It is also important to choose a screwdriver with the optimal type of battery. Lithium-ion can be charged without necessarily completely discharging. But nickel -metal-hydride battery is light and ecological. If possible, purchase a drill-screwdriver with a battery with a large volume for a normal running time.
A good tool can have some additional features:
- switching speed of rotation;
- reverse;
- different types of cartridge and nozzles;
- impact function for drilling in concrete.
As for manufacturers, the market offers many quality options. Popular among the townsfolk and professionals is a drill electric screwdriver from Bosch (Bosch). Reliable tools produce Makita, AEG, Skil, DeWALT, Metabo. A special niche in the world of manufacturers of construction tools is occupied by Japanese Hitachi and American Black & Decker. Among domestic manufacturers of household electric drills, Electric has proved to be quite good at Interskol.