More recently, manufacturers of power tools have begun to actively explore new optional features and functions of screwdrivers. In the wake of the general modernization of model lines, the concept of a multifunctional drill / driver emerged, as well as developers began to more willingly introduce battery packs into the design of devices. Most clearly these ideas are embodied in the products of large foreign companies, but some successes are also observed in the segment of Russian manufacturers. They are confirmed, in particular, by the example of Caliber. The screwdriver of this brand is presented in different versions, but the battery modifications are of particular interest to most fans of the brand.
Features of battery models "Caliber"
The first models of hand-held power tools used batteries of various origins. Today, the use of lithium-ion cells is considered the standard, since their technical characteristics, coupled with toxic safety, seem most attractive from the point of view of the consumer. However, the rechargeable battery for a Caliber screwdriver in almost all versions is represented by a Ni-Cd nickel-cadmium block. What does this mean in practice? First of all, experts point to the "memory effect." That is, if the user charges the unit, which has not yet fully utilized the working resource, then the maximum replenishment will be possible only to the level at which the last session stopped. Also, Ni-Cd elements sin high toxicity, but only in the case of depressurization of the filling, which is extremely rare.
Now it is worth noting the advantages of nickel-cadmium batteries. This is mainly the ratio of price and directly working qualities, expressed in the power of the tool. Just the use of an inexpensive battery makes it possible to classify a fairly productive Caliber screwdriver as a budget segment. The price of models on average varies from 2 to 6 thousand rubles.
Model "DA-12/1"
Perhaps the youngest model in the line, except for modifications with a voltage of less than 12 V. The device is convenient to use, has an ergonomic handle and allows you to drill wood with the formation of 18 mm holes. By the way, metal lends itself to this instrument. Aluminum can be drilled to produce holes 12 mm in diameter. But for the rest, the modest capabilities of this Caliber model are noted. A screwdriver is a typical entry-level budget worker, so you should not expect high performance from it. Rather, this model is suitable for domestic use - and then, it is not worth trusting responsible repair measures. The lack of power is compensated by ergonomics and generally good build quality.
Model "DA-514.4 / 2"
You can start a comparison with analogues from foreign manufacturers of the Bosch and Makita levels with this particular model, which has absorbed many attractive qualities. To begin with, it is necessary to note the battery voltage of 14, 4 V, which in itself gives a good reserve for a household screwdriver. As for the structural and functional advantages, the mechanism of quick change of nozzles, several speed modes to choose from and the ability to adjust the rotation speed deserve attention. Another important point concerns the configuration - the battery for the screwdriver of this version comes in two copies.
It is important to note here one more advantage of nickel-cadmium batteries, from the point of view of the user. Unlike the mentioned lithium-ion batteries, the Ni-Cd format power supply is famous for its fast charging speed. As a rule, in just 1 hour, the unit gains full volume with readiness for use. In order not to waste this time, you can use just the second battery from the “Caliber” set. The screwdriver has a convenient system for removing the supply blocks, so frequent changes will not cause any particular difficulties.
Model "DA-18/2"
This model is an exception to the general line for the reason that its power supply is represented by a lithium-ion battery, moreover, by Samsung. This modification stands out with a voltage of 18 volts. This figure determined the good working qualities of the device, which can cope with the creation of holes with a diameter of 28 mm without problems. But there are other advantages that this Caliber screwdriver has - 18 Volts do not at all limit the model in terms of duration of work on a single charge, and the ergonomics of the handle facilitate physical manipulations with the tool. In addition, the presence of a reverse stroke allows you to more effectively perform complex tasks in the mode of twisting hardware. Together with a good elemental base, such insurance modes significantly increase the effectiveness of the screwdriver and make it more durable.
How to choose the optimal Caliber drill / driver?
In choosing a lot, it depends on where and how the screwdriver will be used. For simple screwdriving operations, you can purchase a model from the initial segment - it is cheaper and worthy of coping with typical work activities. The average power modification can be considered as universal. Such options have a good power potential, and at the same time, ergonomically thought out design, although the balance of mass is not a strong point of the Caliber tools. A screwdriver from the upper segment with a high power reserve can be suitable for some professional tasks. In any case, its design and speed will provide a sufficient level of load.
Conclusion
Of course, there is no question of a full-fledged comparison of a domestic screwdriver with the best representatives of competitive import models. Nevertheless, technological excellence does not yet belong to the priority areas of Russian manufacturers of power tools. Nevertheless, the most expensive screwdriver "Caliber", 18 Volts of which provide effective performance, can well be compared with premium modifications in terms of force. And this is not to mention the difference in cost. The manufacturer "Caliber" offers very affordable solutions that, depending on the model, can cost several thousand rubles cheaper than the Japanese or German versions.