Screwdrivers greatly simplified the life of modern builders and were able to replace screwdrivers, as well as hex and wrenches. When working with them, much less effort is required than in the case of hand tools, and the effect is much higher. According to the type of power supply, an electric tool can be divided into two types: network and cordless. Each of them has its pros and cons. It should be decided which network screwdriver is inexpensive from the best.
Important features of a screwdriver
Devices with rechargeable batteries are notable for their autonomy in use, but are discharged after some time. Also, drives have a limited number of charge-discharge cycles, after they end they will become unsuitable for operation. Constant binding to the outlet affects the mobility of the device with a network modification, but it helps to maintain one power throughout the work and does not require special storage. It is possible to determine which network screwdriver is powerful with the help of a specially compiled rating. According to it, the user will understand for what specific application the device is suitable: home or professional.
When choosing a power screwdriver for the home, it is important to pay increased attention to the operational characteristics of the equipment. These include the following:
- High power. Helps determine the performance and weight of the device. A screwdriver for use at home can have a power of 450 to 650 watts, and he does not need more.
- Torque. This characteristic will affect the performance of the device, describing the force that ensures operation during rotation of the bit. The magnitude of the moment will be determined by the material with which the device can work, as well as the length and width of the fastener.
- Tumbler. Its presence in the device helps to unscrew the necessary fasteners.
- Speed of rotation, methods for adjusting its magnitude. Such a characteristic will determine the possibility of using the device in various conditions.
- Ergonomics - comfortable grip, light weight and other parameters that are responsible for the comfort of using the device in practice.
A simple power screwdriver with a power of up to 300 W, used at home, in a thin metal surface, for example, you can easily screw a self-tapping screw. More complex work requires the use of an electrical device with a capacity of more than 650 watts. Such devices will be included in the professional category, and the indicator of their power reaches 850 watts.
What torque should it be?
In the rating of network screwdrivers, models with different torsion moments are considered. To choose a device that is comfortable to use and durable, you should consider this feature in more detail.
The torque of a home screwdriver most often varies from 25 to 30 N * m. This allows you to screw a 70 mm long self-tapping screw into a wooden base. If there is a need to work with more powerful fasteners, it is recommended to use devices with a torque of at least 40 N * m.
The speed of rotation of a screwdriver for many models reaches 800 rpm, which helps to efficiently screw various fastening elements. This characteristic is considered adjustable. In each device, you can change the speed of rotation of the cartridge by pressing the special gain button or by setting the desired value with the wheel of the toggle switch and controller. When performing a large volume of the same type of work, the second speed adjustment option is much more efficient.
The main types of network screwdrivers
What types of low-cost network screwdrivers exist? All devices differ from each other by the type of cartridge installed (nozzle retention mechanism):
- Equipment with a gear chuck in which the nozzle is inserted using a special key. Activating the device requires some time and effort, but this type of mounting is considered very strong and durable.
- A screwdriver with a quick-clamping chuck is comfortable in terms of ease and speed of changing a worn out nozzle, but when working with harder materials it is considered unreliable and can even fail. There are one- and two-sleeve cartridges with one or several rings of rotation.
- Chucks for bits can only be used in a screwdriver, while the first two types are also used for drills and drill drivers.
Also, the equipment may vary in diameter of the installed cartridge. From such a value depends on how powerful the nozzle can be used when working with the device. A home electrical appliance is equipped with a cartridge with a diameter of 0 to 20 millimeters.
Rotational speed in a screwdriver-drill
How to choose the right cordless screwdriver with the drill function? Such electrical appliances are often called drill drivers. Unlike simple devices, they have several ranges of speed control:
- from 0 to 400 revolutions per minute - can work with fasteners;
- from 400 to 1300 revolutions per minute - during drilling.
Such a device can also differ greatly in the built-in motor - with or without brushes. The second ones cost much more, although they work more smoothly, with low noise and do not need special maintenance (brushes need to be changed regularly, which is why many manufacturers even include special cleaning products in the kit).
The best network screwdriver when working with a large amount of complex work continues to be combined, which includes the main advantages of not only network, but also battery devices. Such a device works from the network, has sufficient power and can even drill particularly hard materials. It does not require the use of a double-barrel outlet and can operate on its own battery.
"Bison" - a tool for homework
The Zubr network drill / driver has the following characteristics:
- "Drill" in the name of the device is not at all accidental. Even models with a weak battery can effectively drill. The device is considered practical and convenient to use, and is also included in the rating of network screwdrivers.
- All Zubr screwdrivers are equipped with lithium-ion batteries. Although some manufacturers create screwdriver models with simple containers.
- Reviews about the network screwdriver are mostly positive, users note the reliability and effectiveness of the device.
Interskol DSH
The characteristics of the Interskol DSh-10 / 320E2 screwdriver are as follows:
- device purpose: drilling and screwing in the required parts;
- maximum drilling diameter - 20 millimeters;
- a keyless chuck is installed in the device;
- type of equipment - shockproof;
- maximum torque reaches 35 N * m;
- the device consumes power up to 320 W;
- food comes from a network;
- two speeds are available;
- drilling diameter of the device reaches 10 millimeters;
- the diameter of the cartridge varies from 0.8 to 10 millimeters.
In addition, Interskol is included in the rating of the best network screwdrivers.
For professionals - Makita
It is included in the rating of network screwdrivers and is considered the best in the Japanese market. In practice, the boundaries of the use of the device are much wider and consist of the possibility of painting and working with pneumatic tools. Operating temperature is in the range of 300-500 degrees. The scope of the device is quite wide. Professional craftsmen, using the device, can carry out the installation of drywall, and furniture assemblers do not even imagine the work process without the Makita power screwdriver.
Devices with a value from 0.5 to 1 kW belong to the household group. Models from this company managed to establish themselves in the modern market only from the best side, they are distinguished by their reliability, ease of use, as well as thoughtfulness and general accessibility.
How to create with your own hands?
How to make a screwdriver yourself from the network? Many people think that changing the power of your device on your own is very difficult and much easier to just buy a new device. In practice, each owner will be able to easily remake his old screwdriver for mains power.
How to repair a broken device?
Such a device will last even longer, only first it will have to be restored a little. This is pretty easy to do. You need to use the following materials and tools:
- a device that previously performed the role of charging the battery;
- stranded electrical cable;
- battery from a screwdriver that is no longer working.
From the tools should prepare a soldering iron, electrical tape and solder. All these components will help to change the device and make it possible to connect it to a 220 Volt network.
Work stages
In the work on the re-equipment of the device, some rules must be observed:
- First you need to solder the electric wire to the contacts of the charger. But since copper wires are installed in the wire, and brass terminals in the power supply, it will be quite difficult to combine them. In this case, acid should be used for the compound. She needs to carefully process the charging terminals, then solder the wire with the contacts. The resulting connection must be made correctly, since the operation of the device will depend on it.
- In the second stage, you will have to change the old battery. To do this, you need to disassemble and eliminate all the contents inside. Although manufacturers do not advise doing this, we don’t need the battery itself anymore. When disassembling the device, it is important to use special personal protective equipment and not to throw the internal parts into the trash, but to dispose of them. A load is placed in the battery case, which will become the main counterweight.
- After the inside of the battery is eliminated, you should start soldering the loose contacts of the electric cable to the terminals of the battery located in the inside of the device.
An electric cable is built into the battery from the outside, creating a special hole in the device with the required diameter. After that, you need to tightly fix the cable in the battery case.
It is for this that the insulation tape is useful, which wrap the cable inside and out, creating a lock. After that, the battery case is installed, and the finished device is already in use.
Sparky BVR 6
This model from a Bulgarian manufacturer is also included in the rating of network screwdrivers. The device is equipped with double insulation, therefore it is completely safe during operation. The model is considered quite budget and works without making a strong and annoying noise.
Users note the comfort in using the device, which provides an ergonomic handle that evenly distributes the load and absorbs all vibrations.
The main advantages of the device
Other features of the model:
- locking sleeve helps adjust drill depth;
- adjusting the torque allows you to adjust the desired mode depending on what the purpose of the work is;
- a special blocker helps to fix the switch in the on state;
- Electronics helps to adjust the speed of rotation;
- reverse determines the direction of rotation;
- the holder sits firmly on the belt and is convenient to use.
Additionally, special interchangeable nozzles, a case and a magnetic holder are included. Before setting up the device and checking the operation of all the built-in functions, it is important to make sure that it is disconnected and disconnected from the power supply. All network screwdrivers included in the rating are considered reliable and high-quality models that can be used in homework, without fear for the final result.