All about cordless screwdrivers

Construction and repair work is a complex process that requires not only knowledge and practical experience, but also the presence of special technical devices. To repair the premises and household appliances, collect furniture and fix fasteners, it is necessary to perform a large amount of work on screwing and unscrewing bolts, screws and self-tapping screws. Most of the craftsmen use ordinary screwdrivers, which are physically demanding and time-consuming to work with. Professional builders recommend paying attention to cordless screwdrivers, which will greatly speed up and simplify construction work.

The cordless screwdriver is a state of the art equipment, which has a wide range of applications, namely:

• Furniture assembly;
• construction and repair work;
• repair of household appliances and electrical appliances;
• installation of window frames.

The main advantages of such equipment are as follows:

• the presence of a battery device;
• versatility;
• availability of auxiliary components;
• light weight and size;
• ease of use.

Considering the disadvantages, it is worth noting the following:

• low revs;
• the inability to work with large self-tapping screws;
• no drilling function.

For the correct choice of any construction tool, it is imperative to know its technical characteristics. It is worth considering the main technical parameters of the cordless screwdriver.

• Battery power. This indicator depends on the charge level and may vary depending on the battery voltage. Battery charge affects tool performance. The maximum value is shown for a fully charged device. When stored for a long time, the battery tends to discharge.
• Battery type. There are several types of batteries that have individual properties. Nickel-cadmium battery has such advantages as low price, memory effect, resistance to temperature extremes. Among its disadvantages are high charge and discharge currents, toxicity and low capacity. The nickel hydride model is characterized by high capacity and environmental friendliness. Its disadvantages include the presence of a small amount of charge, and complete discharge is also undesirable. The lithium ion battery has a high power level, small size and slow discharge. Its disadvantages include the absence of a memory effect, a high price range, a short period of operation, and a negative perception of low and high temperatures.
• Battery capacity. This is an indicator that affects the period of operation of the device without additional recharging or installing a new battery. The rate of consumption of the container depends on the type of mode used and its intensity.
• Battery type (removable and non-removable). Stationary chargers have a small capacity and require constant recharging. Detachable - mount on powerful devices and charge quickly.
• Rotating moment Is the number of revolutions in contact with the working surface.
• Number of revolutions Is the total number of shaft revolutions over a certain period of time.
• Charging time. Basically, this parameter depends on the type of battery and can be up to 10 hours.
• Handle shape.

A cordless screwdriver is a simple device that consists of the following elements:

• rechargeable battery or power supply;
• control button;
• reducer;
• Electrical engine;
• tip;
• spindle;
• drill chuck;
• drill;
• charge indicator.

On the shelves of specialty stores, you can see two types of screwdrivers, such as:

• household;
• specialized.

The type of device depends on the appearance of the handle and is as follows:

• straight - the classic version, the shape of which is similar to an ordinary screwdriver; disadvantages - thick handle, inability to carry out work in hard-to-reach places;
• with a handle in the form of a revolver (mini-screwdriver) - a popular type of tool; advantages - small size, versatility, convenient shape;
• in the form of the letter T (shock) - a professional tool that allows you to continue working even with a discharged battery;
• transformer - a universal and multifunctional electric screwdriver used by professional builders; dignity - change in appearance.

Depending on the type of power supply, the following types of screwdrivers can be distinguished:

• rechargeable - work only from a charger;
• hybrid (wired) - powered by mains and battery.

On the shelves of modern specialized stores, you can see a large number of products of this group. Electric screwdrivers differ not only in shape and price, but also in the country of production.

• The leader in sales of this group of products is German brand Bosch, which manufactures high quality products on modern equipment using innovative technologies. Advantages - wide assortment, high quality, availability of additional functions, as well as a storage box and attachments.

• Domestic firm "Zubr"... Advantages - high quality, affordable price range.

• Devon brand screwdrivers - multifunctional tools, which come with a special organizer and a set of bits. Advantages - reverse rotation, backlight, magnetic holder, non-contact phase detector and wire stripper.

• Products are in well-deserved demand Japanese brand Makitawhich are small and powerful chargers. A wide range and a large number of additional functions will surprise even professional builders. All devices of this company have an additional battery.

• Ryobi Asian Company produces a wide range of products in this group. Advantages - ergonomics, the presence of a wide start button and elastic silicone pads, low weight, mobility.

• AED company manufactures the smallest screwdrivers that can easily fit in your pocket. New to this brand are two-speed cordless screwdrivers that can perform the drilling function. The charging period for the mechanisms of this company does not exceed 40 minutes.

• German firm Wiha is engaged in the production of screwdrivers of European and Chinese assemblies. The products of this manufacturer are distinguished by a wide price range and high reliability.

Professional builders have compiled an overview of the most popular screwdriver models, namely:

• household tool Makita 6723;
• household screwdriver Bosch with 12 bits;
• Sparky household tool;
• specialized screwdriver-transformer "Zubr";
• professional Makita tool;
• professional Hitachi screwdriver.

An electric screwdriver has many functional similarities, but experts recommend paying attention to the following features of this tool:

• low power;
• inability to drill holes;
• light weight and size;
• compactness;
• ease of use;
• versatility;
• lack of a chuck;
• low battery capacity;
• the need for regular charging in the case of a non-removable battery;
• the ability to choose the required shape of the case.

The main parameters of the screwdriver are as follows:

• high power;
• large weight and size;
• high speed of work;
• the presence of a chuck;
• large charger capacity;
• the presence of a removable spare battery;
• the impossibility of changing the shape of the structure.

The correct choice of the necessary tool is the key to a high-quality and successful implementation of the task. The main parameters that affect the choice of the tool are the number of revolutions, the torque, the type and capacity of the battery, as well as the number and types of attachments. For home use, experts recommend paying attention to tools that have the following parameters:

• level of torques - 5 Nm;
• the number of revolutions - 400 per minute;
• battery charging time should not exceed 2 hours;
• the average voltage level should be 5 V;
• the presence of a spindle lock, which will allow you to use the tool in manual mode and safely change tips;
• the presence of a reverse, which rotates the device in different directions;
• number of batteries - two;
• light indication;
• the presence of rubber elements on the handle;
• availability of auxiliary components.

For work in closed rooms, you must choose a lithium ion battery, for conditions with unstable temperatures, a nickel-cadmium device is suitable, and a nickel-hydride device is considered universal. The most popular are models that have a speed control sensor, which makes it possible to change it depending on the type of working surface. The powerful battery will allow you to carry out work without recharging for a long period. The electric screwdriver comes with a case with bits. The number of attachments in a set depends on the characteristics of each model and country of manufacture. A standard set of bits is sufficient for the most common types of construction and renovation work. In a set of professional screwdrivers, you can see caps and drills.

When buying a tool, professional builders advise you to know and apply the following rules:

• low price is a sign of a low-quality product with a short service life;
• a product of a well-known brand always has high quality and reliability;
• lithium ion batteries significantly extend the life of the equipment;
• the presence of a special organizer will give the device greater functionality, compactness and simplify the process of its storage;
• the presence of additional functions will significantly expand the scope of work and increase the functional value of the device.

In the process of using a screwdriver by novice craftsmen, a large number of questions and difficult nuances arise.To solve these problems, professional advice from experienced builders will help. With a minimal amount of knowledge, you can fix all breakdowns yourself. The disassembly process will not cause difficulties even for inexperienced craftsmen. To remove the internal parts, simply disassemble the housing and remember to disconnect the motor from the gearbox.

If the screwdriver does not turn on, you need to perform the following manipulations:

• check the power wire;
• check the charge level;
• check the integrity of the wires going from the charger to the button;
• press the power button;
• check the wire from the motor to the button.

For diagnostics, you need to purchase a multimeter. Damaged and deformed parts must be replaced. In the absence of rotating movements, the diagnosis consists of the following measures:

• checking all contacts of the button;
• checking the engine disconnected from the gearbox;
• checking the shaft, buttons and brushes.

To replace the battery with a lithium-ion, you need to purchase the following components:

• new battery;
• charge microcontroller;
• soldering iron;
• special glue;
• wires;
• drill;
• files.

The capacity of the new device must fully match the capacity of the old battery. It is worth paying attention to the following stages of work:

• disassembly of the device;
• disconnecting the old battery;
• installation of a new battery with a microcontroller;
• drilling a hole for the wire;
• installation of wires to the board, socket and battery;
• fixing parts with special glue;
• final assembly of the device.

If you need to change the charger to power from the mains, you need to purchase a power adapter that matches the motor voltage and a socket. The installation process consists of the following steps:

• parsing the case;
• soldering wires to battery contacts;
• installation of a socket with wires;
• drilling a hole for the plug in the back cover;
• collecting the device.

To simplify the implementation of construction and repair work, modern manufacturers offer craftsmen a new type of device - cordless screwdrivers. This tool is a versatile device with which you can quickly and efficiently perform a large amount of work. Before going to a specialized store, be sure to carefully study all the features of this product and consult with experienced craftsmen. The quality of the work performed depends on the reliability and versatility of the selected device. Novice craftsmen need to know the main rule - a quality product cannot have a low price.

An overview of the BOSCH IXO V cordless screwdriver is presented in the video below.