It's hard to imagine a good set of tools without a screwdriver. This device is popular both among specialists involved in construction work and in domestic use. With it, you can replace a screwdriver, drill and even a wrench. Using a screwdriver in business, it turns out to reduce the time to complete the task, and the operation of the device from the battery allows you to make the work autonomous and independent of the electrical network.
Principle of operation
To understand the principle of operation of the device, let's first consider its main elements. Inside the screwdriver there is an electric motor responsible for the rotation speed, a planetary gearbox, an electronic control system that ensures the operation of the device and a battery. If we talk about external details, then here we see a case made of durable plastic, a cartridge, a power button, speed and direction of rotation regulators.
In order for the device to start functioning, you should press the button that has a built-in speed controller. It can also be called a switch. After that, the electric motor transmits the movement to the shaft through the gearbox. The direction of travel is selected using the reversing switch. Thanks to these actions, the chuck with the tool installed on it is set in motion.
To carry out this process, the device needs a charge, which it receives from the battery. Before work, make sure that the battery is charged.It takes about 3-5 hours to charge household devices, and professional options have expensive “stuffing”, based on which, their battery fills up with energy faster.
Types of cordless screwdrivers
According to the type of battery used, devices are divided into 3 types:
- Lithium-ion batteries. Such a power source is considered the safest from an environmental point of view. Batteries of this type can be used up to 3,000 times with a full discharge / charge. They should not be used at negative ambient temperatures.
- Nickel-cadmium batteries can go through up to 1,000 cycles of use and can be used outdoors during the cold season. Store such batteries in a fully discharged state, and start charging only after they are completely discharged.
- Nickel-metal hybrid battery. Designed for 500 charges and not designed to work in the cold.
The last two options have "memory". If they are not fully charged, the capacity will be reduced in the future.
Devices can be divided according to their field of application into household and professional screwdrivers. Household appliances are inferior in their characteristics and functionality to professional models. The main distinguishing parameters are the torque, which for professional devices reaches 130 Nm, as well as the speed of rotation of the motor. Screwdrivers for home use have a speed of about 500 rpm, and professional ones - 1,200 rpm.
Cordless and cordless screwdriver - what's the difference?
The main distinguishing feature of these two tools is the power source. The network device is powered by electricity. Its operating time is independent.Such a device can be used as long as necessary, without worrying about the charge. This feature will be useful when long-term operation of the device is required. There are disadvantages here, such as the location of the outlet. If it is removed from the scene of action, you will have to use an extension cord. Inconvenience can also arise due to the presence of wires that will interfere with the process. Cordless screwdrivers are more powerful and lighter than cordless screwdrivers.
The main advantage of battery models is portability. Thanks to it, it becomes possible to use it in any convenient place, without thinking about the presence of an outlet. The operating time of the device will depend on the battery charge. As the charge decreases, the power of the tool will decrease.
Application area
Cordless screwdriver has found application in many industries and in everyday life. It is used not only for construction needs, but also in mechanical engineering, in assembly plants, as well as in the automotive industry. Such a tool is actively used in the assembly of furniture, the installation of plastic windows, and the fastening of drywall. In everyday life, it is used during construction and installation work. A screwdriver can screw in and remove screws, self-tapping screws, bolts, tighten dowels or anchors, drill metal or wood, create threading in structures. With such a tool, the goal is achieved faster, while labor costs are reduced.
A screwdriver is used for non-standard purposes. For example, it can be used to clean drain or sewer pipes.To do this, it is necessary to install a cable or wire in the cartridge of the product, and then turn on the device at low speeds. The cable will rotate and remove the blockage. It can also be turned into a construction mixer and used for mixing mortar. Particularly resourceful people with the help of a screwdriver even peel potatoes. So, by including imagination and ingenuity, it is easy to turn a tool designed for screwing screws into a universal unit.
How to choose a cordless screwdriver
The choice of this tool depends entirely on the goal pursued. If the use in everyday life is limited to short-term and periodic use, then the use in production does not provide such concessions.
Let's start with the power of the device. Using the device to solve everyday issues, a battery with a voltage of 3-6 V will be enough. If you have to work with timber, drywall or plastic, then you need a device with a power of 10-15 V. To interact with solid materials, you need a battery with a voltage of at least 18 V. The higher the power of the product, the wider the functionality provided.
The torque of the device shows how much force it “invests” in drilling and how much load it can handle. This parameter for household appliances does not exceed 20 Nm, and for professional ones it starts from 100 Nm. The length and thickness of the screwed part depends on this characteristic. Torque can be adjusted. There is a limiter on the body of the device, with the help of which the required force is set. This gives a better grip, and the fasteners and material remain intact.
The rotation speed is considered one of the important parameters that you should pay attention to when purchasing a screwdriver.The rotational speed is controlled by the degree to which the power button is pressed. The pressing force comes from the material and fasteners with which to work. The size of the hole that can be made if the tool is used as a drill depends on the speed of rotation. So, to work with bolts or self-tapping screws, 500 rpm is enough, and if you use a drilling tool, then the rotation speed must be at least 1,000 rpm.
An important element of the screwdriver is the chuck. There are three types of cartridge. If you have to work with hard materials, then it is better to give preference to the key cartridge. It takes some time to replace the equipment in such models, but during operation it will be securely fixed. A single sleeve keyless chuck is used for quick tool change. The third version of the cartridge is a hexagon. In addition to the type of cartridge, the diameter of its hole should be taken into account.
The operation of the device depends on the battery. The types of batteries used were discussed above, so before buying, pay attention to this detail and consider the conditions where the device will be operated and stored. Battery capacity affects the duration of the screwdriver. Household models have enough capacity of 2 A / h. In addition, you should take into account the time required to fully charge the battery. Budget models spend a lot of time charging.
Many models of screwdrivers have additional features. For example, they "know how" to signal a lack of charge in the battery or are equipped with a backlight.
The best budget cordless screwdrivers
Hummer ACD 12LE
This low-cost cordless drill is designed to work with fasteners and is also suitable for drilling in wood, plastic and metal. It has a small weight and compact size, so it will not cause discomfort during operation.
The maximum torque of the Hummer ACD 12LE is 18 Nm. There are 19 adjustable positions to customize the device for specific conditions and material. The rotational speed is 500 rpm. If you use the tool as a drill, then the maximum drilling diameter in wood is 20 mm, and in metal - 10 mm.
For convenient operation, the manufacturer has provided electronic speed control and illumination of the working area.
The battery capacity is 1.3 Ah, and the voltage is 12 V. The time for a full charge is 3 hours. Hummer ACD 12LE weight is 1.2 kg.
The average cost is 2300 rubles.
screwdriver
Advantages:
- engine brake;
- during operation, the speed does not decrease;
- there is a fastener for the belt;
- ergonomic design.
Flaws:
Interskol SHA-6/10,3MZ
The model is a compact drill driver with a shortened base. It has two modes of operation: smooth and fast. With its help, you can quickly cope with both drilling and twisting of fasteners. Equipped with a lithium-ion battery, which is characterized by high energy consumption and no memory effect. If the work is carried out in a room with insufficient light, then thanks to the LED backlight, this problem can be easily eliminated.
The tool has 18 torque settings, making it easy to work with different materials.There are also reverse functions and electronic speed control. You should not worry about involuntary switching on of the device, since the manufacturer has provided a blocking of this button. The maximum torque Interskol SHA-6 / 10.3 MZ is 26 Nm, and the maximum rotation speed is 1,500 rpm. The battery capacity is 1.5 A / h, and the voltage is 10.8V. The weight of Interskol SHA-6 / 10.3MZ is 940 grams.
The average cost is 4,400 rubles.
Screwdriver Interskol SHA-6/10,3MZ
Advantages:
- small dimensions;
- backlight;
- convenient to use;
- fast charging;
- price.
Flaws:
Milwaukee M12BSD-0
This screwdriver model has a compact size, so it is suitable for use in confined spaces. Despite the fact that the Milwaukee M12BSD-0 has only one speed of operation, the device is characterized by high performance. The planetary gearbox has metal gears, which ensures long-term operation of the device. There are 15 torque settings to suit any material. To make the Milwaukee M12BSD-0 universal, the manufacturer has provided a drilling function.
You should not worry about the safety of the device during operation, as the RedLink electronic system is installed here, which prevents the device from overheating. An LED light is provided for operation in low light conditions. The maximum torque reaches 20 Nm, and the maximum rotation speed is 500 rpm. The weight of the Milwaukee M12BSD-0 is 900 grams.
The average cost is 4,900 rubles.
screwdriver Milwaukee M12BSD-0
Advantages:
- compact size;
- there is a drilling function;
- fast bit change.
Flaws:
- there are no batteries included;
- brush motor.
Bort BAB-12X2LI-FDK
The model from Bort is a drill driver. With its help, you can prepare holes and install fasteners in a short time. The device has a compact size, ergonomic shape and light weight, so you can work in hard-to-reach places, and there is no discomfort during operation. There are 2 rotation speeds, as well as a reverse function. 19 torque settings to match the material and size of the screw. For more comfortable work illumination is provided.
The maximum torque is 35 Nm and the maximum rotational speed is 1,350 rpm. The kit comes with lithium-ion batteries with a capacity of 1.5 A / h, the full charge time of which is 1 hour. The weight of Bort BAB-12X2LI-FDK is 1.4 kg.
The average cost is 3,300 rubles.
screwdriver Bort BAB-12X2LI-FDK
Advantages:
- easy change of nozzles;
- power;
- Comes with extra battery and bag.
Flaws:
- no indication of battery charge.
Metabo PowerMaxx BS2014 Basic
With Metabo PowerMaxx BS2014 Basic, you can drill wood, metal, ceramics and plastic, as well as work with fasteners such as self-tapping screws or screws. The diameter of the hole in working with metal is 10 mm, and with wood - 22 mm.
Two speeds are provided. The minimum speed is 360 rpm and the maximum is 1400 rpm. The first speed is optimal for working with fasteners, and the second for drilling. The maximum torque is 34 Nm. There are 20 chuck step adjustments.
For convenient use of the tool, the manufacturer has provided rubberized handles and spotlights. The battery capacity of the model is 2 Ah. The set comes with a spare battery, so you can do long work without interruption for recharging.
The average cost is 5000 rubles.
Screwdriver Metabo PowerMaxx
Advantages:
- high power;
- compact size;
- comes with a spare battery;
- battery charge indication.
Flaws:
The best mid-range cordless screwdrivers
Makita DDF083Z
This cordless tool is widely used for furniture assembly and construction and installation work related to fasteners. Makita DDF083Z can be used both indoors and outdoors. The engine of the model is brushless. It can be used for continuous operation, since it does not heat up during operation. Two speeds are provided. For smooth movement, lightly press the start button, and for intensive movement, press it all the way. For installation of equipment there is a hexagonal elephant, which makes it easy to change bits and drills. There is a reverse with which you can change the direction of rotation of the spindle.
To adjust the work of the tool to the material, there are 16 levels of torque. The Makita DDF083Z also has a pre-installed controller that will prevent the device from failing due to overheating or overload. For work in the dark or in low light, an LED lamp is installed. There is a metal clip for easy carrying of the product. So, the device can be mounted on a belt or stand.
Makita DDF083Z has a maximum torque of 40 Nm and a maximum rotation speed of 1700 rpm. The device is equipped with a lithium-ion battery, the voltage of which is 18 V. The weight of the Makita DDF083Z is 1.1 kg.
The average cost is 7400 rubles.
screwdriver Makita DDF083Z
Advantages:
- brushless motor;
- convenient change of equipment;
- light weight;
- fast battery charge;
- the presence of illumination.
Flaws:
- Batteries and charger not included.
Makita DFR550Z
A feature of the model is the use of fasteners in the tape. The device is designed to perform sheathing work with sheet material. Fasteners should be 4 mm in diameter and 25 to 55 mm long. For work, a special interchangeable tape with fasteners is used.
Makita DFR550Z is equipped with a brushed motor. The rotational speed is 4000 rpm. The tool has one speed of operation, as well as a reverse function.
The average cost is 15,500 rubles.
Screwdriver Makita DFR550Z
Advantages:
- convenient in work;
- high speed;
- rubberized handle.
Flaws:
- the reverse button interferes with operation.
DeWALT DCF610D2
The DeWALT DCF610D2 is a compact, impactless tool that makes it easy to get the job done in tight spaces. The model is suitable for work with fasteners and drilling. DeWALT DCF610D2 has 15 adjustable positions, which are selected depending on the material and size of the screw. The reducer of the device is made entirely of metal, which guarantees a long service life. The switch is made in a parabolic shape, so that you can better control the speed of rotation.The hexagonal chuck has an automatic lock, and the change of the nozzle can be done with one hand. It is also worth noting the ergonomic design of DeWALT DCF610D2 - the handle is rubberized and does not slip during operation.
There is a triple LED-backlight for complete illumination of the work area.
The maximum torque of the device is 8 Nm, and the maximum speed is 1500 rpm. The battery capacity is 2Ah and the voltage is 10.8V. This model uses a new form of lithium-ion batteries that have better vertical stability.
The average cost is 9,700 rubles.
screwdriver DeWALT DCF610D2
Advantages:
- ergonomic design;
- metal gearbox;
- fast battery charge.
Flaws:
Bosch GSR 18 V-EC TE 0
Bosch GSR 18 V-EC TE 0 is a representative of a compact and at the same time productive tool. Working with him is comfortable and not tiring. The model also has a compact head, which makes the work process more precise. A locking button is provided, with which you can facilitate prolonged use. You can set the screwing depth of fasteners, and this screwdriver is also compatible with the option that allows serial screwing.
The Bosch GSR 18 V-EC TE 0 has a brushless motor. The maximum torque is 25 Nm. The rotational speed is 4200 rpm. The battery capacity is 4 Ah. A full battery charge is enough to drive 3400 screws. It also provides a system that provides batteries with protection against overload, overheating and complete discharge.
The average cost is 13,000 rubles.
Screwdriver Bosch GSR 18
Advantages:
- the ability to set the screwing depth;
- high performance;
- Battery capacity;
- fixed in working position.
Flaws:
- batteries are not included;
- supplied in a cardboard box.
Bosch GSR 12V-20 HX
The Bosch tool is an excellent representative of the mid-range screwdrivers. The Bosch GSR 12V-20 HX features a brushless motor and an electronic protection system to ensure long tool life. Although this model is a representative of compact devices, the maximum torque is 20 Nm, and the spindle speed can reach up to 1,300 rpm.
This screwdriver has a universal bit holder. For convenient work, the manufacturer has provided a bit holder on the belt and a clip for attaching the tool to the belt. To work in a poorly lit place, an LED backlight is provided, and so that the battery does not run out abruptly, there are light indicators by which you can see the remaining amount of charge. The battery capacity is 2 Ah, which is enough to tighten about 700 fasteners. Battery charging time is 45 minutes.
The average cost is 13,500 rubles.
Screwdriver Bosch GSR 12V
Advantages:
- a spare battery is provided;
- fast charging;
- high performance;
- convenient operation.
Flaws:
The best professional cordless screwdrivers
Makita DFS452TJX2
This model belongs to professional tools. The Makita DFS452TJX2 case is comfortable to grip with one hand, so there is no discomfort during prolonged use. The power button is comfortable to press, and for better control of the tool, an elastomeric coating is provided.Do not disregard the high performance of a screwdriver. Electronic speed control allows you to make up to 4000 rpm.
For comfortable operation, the manufacturer has provided an electric brake. During operation, the tool does not make much noise, since an improved clutch is installed here. There is also a locator that allows you to control the screwing depth. It is easy to install and quickly removed. The battery capacity is 5 Ah. There is also an energy-saving mode that automatically turns off the tool when it is idle for a long time. In case of overload or overheating, an automatic shutdown occurs, which will be indicated by a light indication.
The average cost is 28,000 rubles.
screwdriver Makita DFS452TJX2
Advantages:
- comfortable to work in any position;
- high performance;
- there is a nozzle for tapes;
- does not create a lot of noise during operation;
- economy mode.
Flaws:
- backlight turns off every 12 seconds.
Makita BTD130FRFE
This impact driver is designed to work with M4-M10 fasteners. The drive of the model has been improved, thanks to which the productivity has increased, and the energy consumption has decreased. The torque of the device is 140 Nm, but there are no adjustments for this parameter. The speed of rotation and impact can reach 2400 and 3200 per minute, respectively. These characteristics are regulated by the force of pressing the trigger. At the top of the case is the reverse lever. The kit also includes two 3 Ah batteries and a charger. It takes about 20 minutes to fully charge the battery.
The average cost is 29,000 rubles.
Screwdriver Makita BTD130FRFE
Advantages:
- compact size;
- works with all types of fasteners;
- high performance;
- fast battery charge.
Flaws:
Metabo SE 18 LTX6000
The Metabo SE 18 LTX6000 is a lightweight and compact instrument. In operation, it is convenient to hold it with one hand. It has a high rotational speed, which reduces the time to complete the task. For faster work, it is possible to install tapes. There is a screwing depth limiter to control the progress of work. Vario electronics are pre-installed to control the speed depending on the material used.
The maximum torque of the Metabo SE 18 LTX6000 is 5 Nm, and the rotational speed is 6000 rpm. Comes with two 2 Ah batteries and a charger.
The average cost is 31,000 rubles.
Screwdriver Metabo SE 18
Advantages:
- light weight and compact size;
- the ability to work with tapes;
- battery level indicator;
- high speed.
Flaws:
Milwaukee M18 FSGC-202X
The feature of this model is the upgraded brushless motor. Thanks to this, the power and operating time of the tool are increased by 2 times, and the engine life by 10 times. The Milwaukee M18 FSGC-202X can be used with or without a screw magazine. The design of the device allows you to easily disassemble it to clean it from dirt and dust. The Milwaukee M18 FSGC-202X has a top speed of 4,500 rpm, allowing you to drive up to 2,000 fasteners on a full battery charge.
On the body of the tool there is a battery charge indicator and a backlight, which makes the work more comfortable. The maximum torque of the product is 13 Nm.The battery capacity is 2 Ah. The battery can be fully charged in 40 minutes.
The average cost is 34,000 rubles.
screwdriver Milwaukee M18
Advantages:
- operation at negative ambient temperature is possible;
- high performance;
- fast battery charge;
- Comes with a magazine for screws.
Flaws:
Bosch GSR 18 V-EC
The main advantage of the Bosch GSR 18 V-EC TE is its compact head, which allows you to work in hard-to-reach places. The kit also has a magazine that allows serial screwing of fasteners. For convenience, a screw-in depth limiter is provided, and for continuous long work there is a locking button. The manufacturer also supplied new batteries with a capacity of 5 Ah. Their charging time is 30 minutes, and a full charge of the battery is enough to tighten 3,400 screws.
The maximum torque is 25 Nm and the speed is 4,200 rpm.
The average cost is 32,000 rubles.
Screwdriver Bosch GSR 18
Advantages:
- compact size;
- ergonomic design;
- battery capacity;
- fast charging.
Flaws:
Conclusion
This rating includes instruments of all price segments. For home use, screwdrivers of the budget category and models of the middle price segment will be optimal. Construction organizations that have a large amount of work, it is better to look at professional options.