A screwdriver is an essential attribute of any repair. Few people today work with an ordinary screwdriver, unless you need to tighten / unscrew one, maximum two, screws, and take out the power tool longer than it takes them to work. The popularity of a screwdriver is due to its versatility: it not only knows how to tighten and unscrew self-tapping screws, screws and screws. With this
high-power tools can drill holes in wood of any species, in some types of metal. Use electric screwdrivers and when cutting threads. For all these works there are special nozzles. Some of them are bundled with the device, others can be purchased separately.
Like most tools, electric screwdrivers are divided into household (amateur) and professional. They differ primarily in power. Which one to choose depends on the regularity of its use. If your main occupation is connected, for example, with repair orfurniture assembly then purchase
better is more powerful and therefore more professional and more expensive tool. Typically, professionals choose models with a torque of about 130 Nm. If you use it at most a couple of times a month, then a not very powerful (torque about 15 Nm) budget model will be enough.
Electric screwdrivers are divided according to the method of power supply. They are mains or rechargeable. A tool that requires an electrical connection is less popular: it has limited mobility and a lot of weight. It is hard to work with such a tool for a long time. More convenient battery models. Used batteries are of the following types:
- Nickel Metal Hydride (Ni-MH) lasts 500 charges.
- Nickel-cadmium (Ni-Cd) last longer - designed for 1000 charges-discharges.
- Lithium-ion - environmentally friendly, but cannot operate at low temperatures.
In addition to the number of charges / discharges, batteries also differ in the rate of potential accumulation. Professional models charge in 1 hour, cheaper ones - up to 7. If you are going to use the tool for a long time, then you will have to have two batteries to ensure uninterrupted operation: one is working, the other is charging.
When choosing a model, you need to focus not only on technical specifications. It is also important how comfortable the tool is in the hand, and whathis weight. The electronic speed control function will also be useful: it greatly extends the service life by preventing sudden changes in speed and premature wear of parts. The indication of the remaining charge will not be superfluous: you will put a spare battery on charge in time.
When choosing electric screwdrivers, pay attention to the reputation of the manufacturer. This is one of the main criteria to consider. The Russian-made Interskol electric screwdriver competes with eminent Western manufacturers. The model range presented by this company is quite wide. You can choose both a professional model and a tool for home use. Popular among professionals electric screwdriver "Makita". The products of this Japanese company are of high quality, ergonomic design and reasonable price.
