What does the accumulator screw-driver differ from the screw driver in? For what works it is intended? It is easy to guess that the accumulator screw-driver is the small-sized electrically operated hand tool performing work of the normal screw-driver: to twist screw or the screw, to wrap nut.
Construction features
Depending on design and configuration the body of the screw-driver can be direct (as at normal screw-drivers), or in the form of gun. At some models the body folding. The accumulator most often built in, the charging device turns on in the special connector.
At nektory models the adjustment of torsion torque by means of the special coupling is possible. It is convenient during the work with soft materials: the coupling limits depth of screwing of screw.
All models are supplied with reverse. Some models are in addition equipped with illumination: you should not twist blindly screw in the depth of cabinet.
The difference between the screw driver and the screw-driver is rather conditional, and they have similar assignment: in many situations both tools solve the same problems. Screw-drivers differ in compactness and are supplied with spindle in which bits with six-sided shaft are established. Screw drivers it is more by the sizes and, as a rule, are supplied with fast-tightening cartridge.
Advantages and restrictions
Advantages of the accumulator screw-driver:
- the compact size — the tool is slightly thicker than the normal screw-driver, but is shorter;
- universality — having established suitable bat you can twist screws with slit of any size and form and also hexagon head bolts and nuts;
- opportunity to drill small openings;
- the mobility — the screw-driver works from the built-in accumulator.
However there are also some restrictions:
- the operating time from one charging is limited therefore it is necessary to take break in work for recharge, or to have the spare accumulator;
- rotational speed of spindle is small that limits performance;
- the torsion torque is also small therefore the screw-driver is unsuitable for twisting of long screws and screws of large diameter.
The accumulator screw-driver does not replace completely the screw driver and the more so drill. Its purpose is to help with work with numerous raznosortny screws screws. Such is, for example, work on assembly of furniture.
The spindle of the screw-driver is ideally adapted for fast change of nozzles. Having near at hand nozzle of the necessary form and length, you can cope with any screws.
Recommendations about the choice
The more precisely you define what problems you want to solve with the help of the tool, the your choice will be more correct and the satisfaction from work is stronger.
- Evaluate, the tool will be how effective: whether will stir its dimensions whether it will be enough performance, etc. Based on the answers, choose several models with suitable characteristics: accumulator capacity, torsion torque, recharge time.
- Look in network and read the overview of the chosen models. The comparative test will give even more useful information.
- Find opportunity to take the chosen models in hands. It is very important that the tool has been made "under your hand".
- Take an interest in complete set. Sets of bits which are included in the package of the tool of very often low quality. They are short-lived, but quite suit for single work. The case in which the tool is stored can be useful to the house master.
- The quality and durability of the tool often depend on its cost. Look narrowly at products of the known brands. For example, accumulator screw-drivers of Bosch or dewalt will serve longer, than cheap product of unknown origin.