It is not necessary to think that the screw driver – thing in economy absolutely unnecessary. You, of course, can twirl one-two nails and independently, but here if it is necessary to collect furniture or giposkartonny designs, this device is simply irreplaceable.
Main requirements to work
That the screw driver served you long and was safe in use, it is necessary to conform to the simple rules of its operation. Before work make sure that the accumulator is charged and densely adjoins to the device, the bat is well inserted into the coupling of the holder and it is that bat which is necessary for you, and rotational speed is adjusted according to your requirements.
Though the device bears to normal drill a strong resemblance, its mechanism is developed in such a way that to break or to strongly damage the self-tapping screw or surface, having overwound turns, it is almost impossible. As soon as the hat of the self-tapping screw reaches the necessary depth, the safety lock which automatically stops operation of the screw driver works. You at the same time will hear characteristic sound of graggers. But it is not necessary to be frightened – it not the nail has entered surface too deeply, and the drum has stopped. However incorrectly chosen speed can cause fast failure of the accumulator therefore it is necessary to choose it in advance.
Speed of torsion torque
Depending on model, from six to 12 modes of speeds of twisting can be provided in the screw driver. How to choose necessary? As a rule, the operating manual of the device contains recommendations about the choice of the mode concerning type of works and type and length of self-tapping screws, however, not always they can be exact for 100%. It is possible to pick up optimum speed and independently. For this purpose begin work on the lowest rotational speed and pay attention at what moment the click of stop of the boss will sound. If the self-tapping screw at this moment is not twirled finally yet – speeds insufficiently. Having twirled thus several trial screws, you will be able to choose the necessary speed of torsion torque and further to work much quicker and more effectively.
Network or accumulator
If you are going to use the screw driver with the accumulator, best of all get model where accumulators two. It will allow to ensure trouble-free operation – while one is loaded, another helps you to twist self-tapping screws further. Models, electric mains operated, are also popular, however, they do not provide maneuverability. Do not forget important part – the majority of accumulators has "memory" therefore before charging it is necessary that they completely have sat down. If you add charge when the accumulator is discharged not finally, gradually its capacity will decrease.