Selecting a screwdriver

 Screwdriver – a good assistant in the house for any host. Designed for loosening and tightening screws, various screws, screws , dowels . Often, this tool works in using the battery. It would seem that may be difficult in the selection process of this tool ? But today, people are always lost in a wide range of screwdrivers . Sometimes it is often wrong by buying one or another low-quality tool .

Selecting a screwdriver to repair the apartment starts with defining characteristics of the instrument . And so : Battery . Today Stock markets have 3 kinds of batteries :

– Li-ion ;

– Nickel-cadmium ;

– Nickel -metal hydride .

Basically nickel- metal hydride and nickel-cadmium batteries are mounted on ordinary household screwdrivers . These batteries are rated at 1000 recharges . The main drawback of this reduction in battery capacity over time . In lithium-ion batteries is no such disadvantage. However, this battery has its downside , namely poor resistance to elevated temperatures . Reducer . Enough for everyday needs 500 turns . For professional models from 1200 rpm.

RPM screwdriver . It is necessary to focus on the task you want to perform . For example, if you just need to tighten the screw , it would be enough for a speed of 500 revolutions per minute. And for any drilling any holes requires a minimum of 1300 rpm . Therefore, before you decide to purchase the task to be performed by the instrument .

After all the necessary features of the product , the buyer often arise all sorts of questions. For example, what tools need to buy professional or home ? In order to answer the question must be determined again with the task to be performed. If the task does not require much effort , buy a simple household . But if the task requires a special approach and high performance should buy professional . Since this category has high capacity .

Often the choice of screwdriver affect secondary parameters . Such as the location of the handle , handle shape , etc. It is each owner, the worker wants to have a tool that will be nice and comfortable to hold . After all, in the process one should grip on the tool . So that subsequently arose not a pleasant situation. Choosing one or another screwdriver , try it out . In this case it will be convenient to keep the handle , which is located at the center of gravity and not pistol . After the hand is not to be so very tired .