To solve the problem of choosing a good screwdriver for home use, you need, first, to know, and what is this tool? Probably, it will not be a big mistake to say that in quite a large number of people the word "screwdriver" is associated with banal screwing. And when the "first" will be understood, this will help to understand already, secondly - and for what it is necessary to me? Only after this, it is possible to make the right choice of a suitable model in all respects.
What are
screwdrivers? As almost any power tool, screwdrivers are professional and "for home, for the family".Naturally, the difference is not only in price, the price is secondary. They differ in both characteristics and "set" of various functions.
This tool is so to say, "twisting-drilling".Therefore with its help it is possible to fasten:
- ;
- to unscrew;
- to drill.
Any man knows what it is like - using a screwdriver, for example, to screw plastic skirting all over the apartment? Or to collect furniture. Who did this himself, and not just watched, knows how long and "tedious" it is. And still quite often it turns out that the screw is screwed "oblique", because it is much harder to withstand the strictly vertical position of a screwdriver than a screwdriver. Plus - as a rule, at some screws in the process of screwing - twisting the head. And you have to start all over again - erased fingers and spent nerves.
Especially often this interferes with the dismantling of something. Who tried, "like this" - to turn out a rusty screw, especially a small one, perfectly remembers all the "happy moments" of such "pleasure".Screwdriver greatly simplifies this task. It can also perform other "work" - with this tool you can drill material no worse than an electric drill.
How to choose the right model of the screwdriver
Screwdrivers by the "power" method are available in two types: with power from the mains( socket) and with an independent source of voltage( battery).Naturally, the wire constantly laying on the floor somewhat hinders the work, if it is performed not in one place, but on the "territory".In addition, the length of the transfer determines the radius of the "work area".
In terms of independence from the mains, battery models are preferable. Manufacturers offer four types of batteries. At a choice it is necessary to take an interest in such their parameters:
- voltage;
- battery capacity. The "power" of the battery determines which "work" the tool can perform. For household needs, the order of 2 A / h is quite appropriate;
- charging time. The batteries in the kit, as a rule - two. One provides the work of the instrument, the second - it is charged. This time for different types of batteries is in the range of 15 to 45 minutes;
- how best to store between applications( whether there is memory to the charge or not).You should be guided by how often the screwdriver will be used;
- dimensions;
- battery weight;
- guaranteed hours of operation.
- torque. It defines the "strength" of the instrument. For the "home" is quite enough within 30 Nm.
- rotation speed. For domestic needs, about 500 rpm will suffice with interest( for domestic models it is in the range of 300 - 1300).
There are some additional functions that you should also know about.
- pulse mode. It is very useful in the unlocking of badly fastening hardware;
- availability of impact mechanism. If drilling such materials as concrete, brick, it is very useful;
- presence of several speeds. It is clear that both drilling and screwing - it is impossible to turn out at the same speed;
- some manufacturers produce screwdrivers with illumination. This greatly facilitates work in dark places where it is impossible to organize additional lighting.
Now, having received so much useful information, you can also decide on the choice. But a consultation with a "knowledgeable" person or specialist in a tool store will never prevent, and in any case, you will know what to ask about it.
