Not so long ago, a screwdriver could only be found in the arsenal of a professional, today this master tool is already acquired by home craftsmen to unscrew and tighten screws, bolts, as well as self-tapping screws. With this tool, you can drill holes in almost any surface. However, before making a purchase, you need to decide what kind of screwdriver you need.
Selection recommendations
In the store you can find household, semi-professional and professional models. In the first case, we are talking about a tool with which you can unwind or tighten fasteners, assemble furniture, hang a picture or change the lock. Such equipment is designed for not too frequent use. The torque in this case varies from 10 to 15 Nm. But as for professional models, with their help you can not only twist or unscrew, but also drill rather hard surfaces. Such a device can be used quite often, but the torque in them reaches 130 Nm.
Brand Selection
It is also important to determine the manufacturer, for example, the Hammer screwdriver is quite popular, because these products have proven themselves on the positive side. If you also decided to choose the products of this company, then you should familiarize yourself with the reviews, because it is from them that you can understand which version of a screwdriver to purchase.
Reviews on the model ACD120C PREMIUM
Hammer drill / driver costs 5000 rubles, the battery has a voltage of 12 V. It should be borne in mind that this parameter in different models can vary from 1.2 to 36 V. By the voltage you can judge how productive it will be tool, as judged by the power of tools powered from the network. The higher the voltage, the more impressive the device will have.
The maximum value of this parameter, as a rule, for cordless screwdrivers. However, it must be borne in mind that the voltage is not a constant, it reaches a peak after charging the battery and drops to the point when switching on is no longer possible. According to customers, stress may decrease during storage.
The described Hammer screwdriver reaches a maximum torque of 30 Nm. This value is the force of the screwdriver. The higher this parameter is, the more work you can do with the tool. Consumers especially note that it is important to pay attention to the battery capacity, which is 1.5 A * h for the described model. This parameter characterizes the energy storage of the device. It can be judged on how long it is possible to use the unit. We can say that there are boundaries of indicators, they vary within 1.1 to 3 A * h. If you have a tool with a high-capacity battery, the duration will be increased, which, according to customers, is very convenient when you are removed from the power source.
For reference
Large capacity recommended for heavy use. If the value is small, then a fairly frequent recharging will be required, which can cause battery wear and a memory effect.
Consumers do not recommend choosing a tool with a battery of too large a capacity, because in this case the dimensions and weight of the device will be impressive.
Additional feedback on the operational features of the model
The Hammer screwdriver described above (12 Volts) is powered by a NiCd battery, of which there are two. Turnovers can vary from 0 to 350 or from 0 to 1200 per minute. The maximum speed is 1200 minutes. Consumers like that this model is able to perform the functions of not only a screwdriver, but also a drill, among other things, the device has a quick-clamping chuck. The diameter of the latter is 10 mm. Consumers note that the described Hammer screwdriver has many additional advantages, among them a rather impressive diameter of wood drilling should be highlighted, this value is 20 mm. There is an adjustment of the number of revolutions, as well as an engine brake. The device weighs only 1.5 kg, which does not burden the operatorβs hands. Consumers note that the equipment is delivered in a case, which is very convenient for this device.
Reviews on the model ACD182Li
The aforementioned Hammer screwdriver (18 Volts) costs 5500 rubles. The battery voltage is 18 V, but the maximum torque is 24 Nm. The battery capacity is 1.3 A * h, which, according to customers, is a good indicator. Consumers especially note the number of revolutions per minute, it can vary from 0 to 400 and from 0 to 1200. The number of revolutions is a value that reflects the maximum possible number of revolutions of the shaft per minute. If this indicator is quite impressive, then the tool will better cope with drilling work. But often the maximum speed is proportional to the power capabilities. Consumers are advised to consider this before purchasing equipment. The kit includes a quick-clamping chuck, the diameter of which is 10 mm, the twisting force is 16 positions.
In metal using this tool you can drill 8 mm holes. As for wood, this value will be equal to 23 mm. The time of a full charge, according to customers, is 3 hours, which is not always convenient. However, after that the Hammer screwdriver will be ready for work. The weight of the device is 1.6 kg, but this feature is not the only one. Among the additional advantages, home masters note the presence of reverse, electronic adjustment of the number of revolutions, as well as the illumination of the working area.
Reviews on the ACD142Li screwdriver
You can also choose a Hammer screwdriver for yourself, reviews about it, however, it is recommended to read it before going to the store. For example, the aforementioned model will cost the consumer 5,000 rubles. The battery voltage in this case is 14.4 V, but the maximum torque reaches a value of 20 Nm. Hammer cordless screwdriver has unique characteristics, according to consumers. Among them, the presence of a keyless chuck, the diameter of which is 10 mm, can be distinguished. Buyers also note a rather long warranty from the manufacturer, which is 36 months, as well as impressive parameters when drilling. For example, you can drill wood and metal using this equipment by making holes of 19 and 8 mm, respectively.
This Hammer screwdriver, reviews of which are only the most positive, has two or more mechanical speeds, it has an engine brake, reverse, electronic speed control and backlighting of the working area. In addition, it can be noted that the weight of the device is only 1.4 kg.