How to choose a cordless screwdriver - on what figures to pay attention , except for the price ?

How to choose a cordless screwdriver - consider the basic parameters

in many popular television programs seen as a master of using it smartly wrapped screws and repairing furniture.Within minutes, they accomplish the amount of work for which you sometimes takes hours.Quality and spent nerves better not to remember.

Let us first discuss the characteristics and parameters of screwdrivers which offer manufacturers.We hope that after reading you will be able to figure out how to choose the battery screwdriver, and how to use it correctly.

Perhaps familiarity with the screwdriver to start its engine.The performance of any power tool depends on its capacity, and in the case of autonomous tools - and battery capacity.

Most manufacturers supply their tools with electric motors of valve type, non-commutator brushes.They have a fairly high performance, maintenance free and virtually silent.To make the right choice of a cordless screwdriver, pay attention to these features.

On the instrument a lot can be said speed of its working units.Immediately it becomes clear to what works, he is best suited.A small gear ratio provides a sufficiently high speed of rotation of the chuck.But this is exactly what is needed for drilling small diameter holes.

On sale now presented a lot of two-speed screwdrivers models.At the same speed, for example, it is possible to screw the screws, and the other used for drilling.In addition, some models are equipped with electronic speed control system that will agree, very convenient.

Features of the combined instrument or how to choose a Cordless Drill?

If you are interested in how to choose the battery drill , it should be said that most of them have two speeds - a standard feature.With minimal effort cartridge rotates at the lower speed, and with a stronger pressing speed increases.

In order not to "roll the head" screws, tools provided with clutch torque adjustment.When the screw is already screwed to the full, it just starts to slip.This is quite a handy feature that will help you save more than one drill or a removable nozzle even if you have the strength of Hercules.

The passport tool data always shows the weight with the battery.So if you, for example, are dealing with the installation of suspended ceilings, carefully consider this information.But we should not forget that small and lightweight screwdriver does not have the supply of power and energy, which have a heavier model.

How to choose the battery for the screwdriver, and what are the characteristics of its use?

Due to the significant difference in the battery capacity, the question arises, what batteries better for the screwdriver.When people talk about the power of this tool is meant not only the characteristics of its engine, but also the number of batteries in the unit.

Here everything is very simple: the higher the capacity of the battery, the more powerful the machine.But compare this way the various models, which differ in size and purpose, it is not necessary, since the professional tool, for example, has its own requirements.

Models household screwdrivers equipped with nickel-cadmium batteries.The main drawback of this power supply is its "memory" of the charge.If in the process they are not fully discharged, then over time unused capacity can be lost.This can be avoided only through the intensive use of the tool.

If you do not know what to choose for the screwdriver battery, consult a specialist.In order to extend the service life it is recommended at least once a month, fully discharge the battery and then charge it to the correct level again.