How does a cordless screwdriver differ from a screwdriver?

Many home craftsmen use cordless screwdrivers and consider them the most convenient way to screw in or unscrew various fasteners. But before purchasing this or that model, you need to consider the features of such a tool. To choose the best option, it is worth considering the most popular cordless screwdrivers, reviews of which indicate their reliability and convenience.

Why do you need a cordless screwdriver?

Many men use a standard set of tools and do not experience any difficulties, so why do you need a cordless screwdriver? The difficulties of using conventional screwdrivers are due to the fact that working with them is very energy-consuming; you cannot work with a standard screwdriver for several hours a day, and if you conduct such an experiment, then the next day you can say goodbye to your brush.

A cordless screwdriver saves a lot of time and allows you to perform all operations with ease. Moreover, the tool has a large number of bits for working with different fasteners. Another advantage is its compactness. Where a regular screwdriver can't handle it, a screwdriver can go almost anywhere.

Batteries

These assistants for amateurs and professionals can be powered by Ni-Cd or Ni-Mh batteries. Ordinary lithium-ion batteries are also often used. The first two batteries are even more common due to their low price, storage capabilities in a discharged state, and operation at low temperatures.

Ni-Mh batteries drain slowly. This is noticeable when you compare them with higher-capacity Ni-Cd.

But the price of such batteries is more expensive. But in charge-discharge cycles they are noticeably weaker. Up to 700 cycles are allowed here.

Cordless screwdriver - which one is better? Reviews say that standard Li-ion batteries have virtually no drawbacks. Here we observe a short charging time, and there is also no loss of charge when idle. The advantages also include higher capacities, lack of memory, and operating times. The prices also fully correspond to the high characteristics. Such a battery will cost from 3 to 8 thousand.

Screwdriver characteristics

Before deciding to purchase a particular model, you should carefully consider the main characteristics:

• type of tool handle;
• power;
• the material from which the screwdriver shaft is made;
• battery type;
• presence of reverse;
• battery charging time.

The handle of a cordless screwdriver can be of two shapes - L-shaped and T-shaped. Devices of the first type are excellent for many jobs and are distinguished by their compactness and lightness. Their shape allows you to work for a long time without worrying about hand fatigue.

If we talk about power, it is worth mentioning that the higher it is, the higher the cost of the screwdriver. If you need to tighten a lot of fasteners every day, then it is best to choose an expensive model whose service life is extended.

The power of cordless screwdrivers is expressed in torque. If you need to tighten screws on electronics, then devices that produce a value of 2-2.5 Nm are suitable. The best option for working at home is to buy a screwdriver with a torque of 4-6 Nm . There are also devices with an indicator of 15-18 Nm. But their cost is high, and their weight contributes to rapid fatigue during work.

Also, by the cost of the tool, you can judge the quality of the rod used in it (the main part of the mechanism that ensures the rotation of the bits). It should be made of high-alloy steel that does not break with prolonged use. The rod is a cylindrical piece onto which the bits are installed.

Typically, these screwdrivers use either lithium-ion or nickel-cadmium batteries. According to reviews, the first type discharges slowly, is unpretentious, but its lifespan is about 3 years. The second one has a “memory effect”.

What is the difference between a wrench and a screwdriver: 3 main criteria

In some everyday situations, using a wrench is quite difficult. Then devices come to the rescue that help assemble and disassemble threaded devices. One of these is a screwdriver and a wrench. They have one task. assistance when working with fastening parts. but also a lot of differences. We propose to consider the main differences between the devices, find out which is more convenient to use, and how you can modernize an old screwdriver.

An impact wrench is a mechanical tool for screwing in and unscrewing nuts and bolts. You can’t do without it when you need to unscrew a rusty nut in hard-to-reach places, and a simple wrench is powerless. An impact wrench can be confused with a drill. but an experienced owner will see the difference: the nozzle installed in the holder. It is this nozzle that compresses the nut and holds it while the engine screws it in or out.

Tip: DeWalt DW292 is considered a convenient option for a wrench. the model consumes 710 W of power.

A screwdriver is a device for screwing in and unscrewing screws, screws, self-tapping screws and other fasteners. Its peculiarity. work at different rotation speeds. expands the range of possibilities. The device drives screws, drills, and has an impact function.

Advice: Bosch has established itself as a market leader in this niche as well. Particularly popular are the Bosch GSR 6-45 TE and Bosch GSR 14.4-2-LI Plus models.

An impact wrench, unlike a screwdriver, is considered a more professional tool. Depending on the method of application, the mechanism for nuts can be: gasoline, pneumatic, hydraulic, or powered. It is designed for screwing or unscrewing bolts or nuts. Unlike a screwdriver, there is no chuck attached to the impact wrench. In its place is a rod with a nut head.

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Second difference. in tightening power, here the impact wrench has an advantage. With it you can “master” any crafts.

Another difference is the volume and weight of the mechanisms; for example, not every person can lift some impact wrenches. Also, screwdrivers are able to regulate their work process, while other representatives of mechanics do not have this ability. A wrench can cope with complex tasks no faster than a screwdriver, which creates a lot of noise during operation. this fact is the key difference. In such a situation, equipped with a 3-speed gearbox, the DeWalt DCF895M2 screwdriver can replace any device for screwing nuts in light tasks.

In terms of operational capabilities, the mechanism for nuts has serious limitations. When drilling, it is good to use drills. So, for soft wood it is not necessary to use a professional mechanism; you can get by with the BlackDecker EPC12CAB screw driver tool.

You may also be interested in: How to choose a drill

How to convert a screwdriver to a wrench?

Let's look at how to convert an unusable screwdriver into a new impact wrench. For this design you will need:

• Adapter set.
• Device battery.
• Control indicator.
• Button for impact wrench.

Tip: Keep your devices in a case to minimize the risk of damage if dropped. It is important to remember that attachments to mechanisms are very fragile and require careful care.

The device must be equipped with an audible signal for the brakes. Then you should connect and solder all the indicator connectors. If you connect the components correctly, you will get a screwdriver. Watch the tension. It is difficult for the battery to withstand changes. Assembling the parts will take no more than 20 minutes; you can also convert the device to its original state. Such a device will be able to screw in screws, but for this you will need to install a suitable attachment.

To summarize, it can be noted that it is not necessary to buy new home appliances. Good advice from experts will help you build your own impact wrench. At home, it can easily be replaced with a screwdriver. For more serious construction projects, a wrench is indispensable. We hope our material helped you understand the main differences between devices for screws and nuts.

See clearly in the video how to make a new impact wrench from an old screwdriver: Turning a screwdriver into a wrench

The difference between a cordless screwdriver and a screwdriver

If you compare a cordless screwdriver and a screwdriver, the second device is more functional and allows you to perform many operations. In addition, it can work with both wood and metal. The screwdriver is suitable only for household needs. But then why buy it?

Purchasing a screwdriver can be beneficial if it is used, for example, for assembling furniture. Using a heavy screwdriver to perform many simple tasks is completely ineffective. Moreover, such products are in demand not only among ordinary users, but also in the construction industry, so they can be safely chosen for work at home.

Also, special attention should be paid to the type of handle. The choice depends on what kind of work will be done with a screwdriver. T-shaped tools have greater maneuverability and allow you to work even in hard-to-reach places.

The main distinguishing features of cordless screwdrivers:

1. They are not designed to be used with a drill. The cordless screwdriver is designed for hex bits only. However, you can also find special drills, but their number is limited and does not allow you to replace a screwdriver.
2. Screwdrivers can have different shapes. The screwdriver is presented only in the form of a pistol.
3. Screwdrivers have a battery located inside the handle, which is one of the main features. In a screwdriver, this part is located lower and is removable
4. Screwdrivers rotate at only one speed (most often).
5. Have less weight

Price issue

A cordless screwdriver is a tool that is quite affordable - its average price can vary from 1,600 to 4,000 rubles, but there are models that are much more expensive, about 3-4 times. Their price can reach 12,000 rubles.

As a rule, these are models for production professionals. Whether a cordless screwdriver is equipped with sets of bits of different calibers, special attachments, a case or cover can also affect the price.

Thus, when choosing a cordless screwdriver, you can be guided by both the above criteria and the price and reputation of the tool manufacturer.

It is much more important that the qualities and characteristics of different brands, including proven ones, meet not only the needs of the consumer, but also his financial capabilities.

Because the mood with which the tool will be used, and, therefore, the quality of the construction work, depends on both.

MAKITA cordless screwdrivers

MAKITA screwdrivers are powerful and compact devices for working with fasteners. Some models allow you to use the tool with both an L-shaped handle and a straight handle. This happens due to the ability to rotate the handle. The device has a rubber coating, which makes it easier to hold in your hand even during long-term use.

According to reviews, the tools of this company are convenient and functional, and their build quality allows them to compete with other manufacturers.

Typically, such tools operate on nickel-cadmium batteries, which are lightweight and provide about 5 hours of continuous operation. The devices of this company are intended for household and semi-professional use. This suggests that MAKITA screwdrivers are perfect for housework.

The battery is fully charged, according to customer reviews and the presented technical specifications, in just 3 hours. However, this can happen while the device is operating.

Drill

The main function of a drill is drilling. However, if there is speed and reverse adjustment (and most models now have them), it can also be used as a screwdriver.

However, they lack any mechanism to automatically prevent the bat from falling off.

Therefore, here you have to rely only on your hands and head.

According to the drill, the verdict will be as follows. Buy it if you plan to mainly drill. But keep in mind that sometimes it can also be used as a screwdriver - after all, this is in any case more convenient than turning with a screwdriver.

Cordless screwdrivers Interskol

The company's devices are powered by a lithium-ion battery and are designed with a practical design and a comfortable grip. Like many other similar tools, they have a large number of bits and the ability to rotate in different directions. The low weight of the structure facilitates the process of installing or removing screws and promotes comfortable work.

They especially often talk about the OA-3.6 model. Compared to other similar devices, this screwdriver charges much faster, and after a long period of inactivity it starts working without loss of efficiency. This became possible thanks to the low self-discharge of batteries. For convenience, the battery parameters are displayed on the body of the screwdriver, which makes it easy to find out the time after which it will stop working.

One of the advantages of this device is the presence of an adapter for bits, which makes the device more convenient. There is also a light indicator on the case, which facilitates comfortable work in the dark. For convenient carrying there is a special plastic case.

Drill/driver

This tool is universal. They can be used to drill and tighten a self-tapping screw without fear of ruining the bit or unnecessarily recessing the head into the material.

There is an adjustable mechanism (popularly called a ratchet) through which the rotation passes. When the specific resistance you set is reached, it simply turns with a click, and the bit remains in place intact.

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In addition, a drill-driver differs from a conventional electric drill in that it is equipped with a gearbox with a larger gear ratio. Therefore, with the same engine power, a drill-driver has a higher torque value. This means that, for example, a corded drill/driver with a 400 W motor power will have the same torque as a 700-800 W drill. However, the dimensions will be smaller.

The price for this is a lower number of maximum spindle revolutions. If on drills it reaches a value of 3000 rpm, then on drills-screwdrivers their number is no more than 600-800. And if it is two-speed, then the revolutions will still not exceed 1500 per minute.

Thus, we conclude that a drill-driver is a good universal option, since it can perform most of both drilling and screwdriving work.

However, such a tool will not replace a drill for work that requires high rotation speed of the chuck. This is, for example, drilling bricks, when the work takes place in shock mode. And although some models of drill-drivers have an impact mechanism, due to the low speed it is not very effective.

It is also worth remembering that drills are not only used for drilling, but also, for example, for mixing mortars using a mixing attachment. And here, too, high turnover is required. Therefore, a drill-driver is also not suitable for such work.

It’s worth mentioning separately about cordless drills and screwdrivers. Firstly, drills and screwdrivers are made with a battery, but there are no classic drills with a rotation speed of up to 3000 rpm with a battery.

Secondly, using battery technology has both its pros and cons.

The advantages include the following:

• autonomy of work - that is, the ability to work for a certain amount of time away from power grids with pre-charged batteries;
• no wires, which can be convenient, for example, when working on the roof.

The disadvantages are the following:

• aging of batteries - with frequent use, they usually last no more than 3 years, and if used rarely, they still age and in any case become unusable after 5-8 years, even if they just lie idle;
• inability to immediately begin work if it suddenly turns out that the batteries are discharged.

These are my thoughts on this issue. I hope that after reading the article you understand for yourself what tool you need. Let me finish here - see you next time!

–Search by diary

Screwdrivers Bison

Devices of this brand are compact screwdrivers for everyday use. They can also be used for simple drilling. Ease of use lies in the ability to fix the handle at different angles. Reviews say that Zubr screwdrivers are simple and effective devices.

Also, many mechanisms have backlighting, which helps when working in hard-to-reach places.

How to choose a cordless screwdriver: 6 tips and a rating of 5 cool models

A screwdriver is essentially an electrical substitute for a screwdriver. It performs the same functions as its younger “brother”, only it makes the process of tightening/unscrewing screws and bolts much faster. This tool is especially effective if there are dozens or even hundreds of screws. The device can do more than just turn screws. By installing a special drill, you can use a screwdriver to make holes in wood, plastic and thin metal. More powerful devices even take brick and concrete. In general, the tool is indispensable in everyday life and for repairs.

BOSCH devices

BOSCH is a well-known company that produces cordless screwdrivers and other household appliances. All brand products are known to almost everyone due to their quality and reliability. Most often, devices from this company use lithium-ion batteries that do not have a “memory effect”. For convenience, many BOSCH screwdrivers have a special indicator on the body that shows the remaining charge. Thanks to this, the person doing the repairs does not have to worry that the mechanism will fail him at the most inopportune moment.

The charger of such screwdrivers is equipped with a compartment for storing bits, which also increases the level of comfort of use. BOSCH products, according to customer reviews, are one of the highest quality products on the market today. The batteries of such devices do not self-discharge, which allows them to be used at any time.

The body of BOSCH screwdrivers displays not only the degree of discharge of the device, but also the direction of rotation. At the same time, the handle is made of materials that do not allow the hand to slip.

Possible malfunctions and their elimination

The cordless screwdriver is easy to disassemble. Unscrew the case and remove all components from the grooves. The motor is easily disconnected from the gearbox.

Screwdriver won't turn on

To find a fault, you need to check the entire electrical circuit in the following order:

1. Power cord, if available.
2. Battery charge level.
3. Wires going from the battery to the button.
4. Power button.
5. Wires from the button to the motor.

Use a multimeter for diagnostics. Check the wires and the button in the ringing mode, and the battery in the constant voltage measuring mode. Charge the battery first. If the capacity is less than declared, check the voltage of each bank separately. Replace faulty ones.

Doesn't turn

It is necessary to diagnose the button and motor.

1. Check all button contacts with a multimeter. If it is faulty, replace it.
2. Proceed to check the engine. To do this, disconnect it from the gearbox.
3. Click on the button. If the motor does not turn, turn the shaft several times. The brushes may have oxidized. Click the button again. If the problem persists, change the engine.

It rustles and crunches

Often, it is enough to change the gearbox lubricant to resolve the problem. But this does not always help if there are faulty parts.

1. Disassemble the tool.
2. Disconnect the motor from the gearbox.
3. Remove all gears and satellites. Put everything in order.

   Gearbox disassembled before cleaning and lubrication

4. Clean out old grease. Inspect all elements carefully. A tooth on the satellite could break off. This place is pressed onto the large gear. This is where the crunch comes from. Replace faulty parts with new ones.
5. Clean the gear housing too. There may be fragments of teeth in it.
6. Apply new grease.

Screwdrivers STAYER

Cheaper and more common are devices from STAYER, which have:

• large set of bits;
• built-in illumination of the working area;
• movement of the working element in different directions.

Reviews say that such screwdrivers are intended only for household use and are not suitable for a professional builder, as they are less reliable than other devices.

Ergonomics

The ease of use of hand tools is more than just comfort. Many manufacturers of these devices are constantly trying to constantly improve ergonomics. There are many different body shapes and materials for linings. Many devices differ in weight distribution and location of controls. which cordless screwdriver better , you need to choose according to the hand of the master and the type of work that has to be done. It is best to choose a screwdriver that is convenient in every sense, even if you have to pay for it with other characteristics.

One of the important ergonomic parameters is the angle between the axis of the handle and the axis of the motor. Designers, creating, in their opinion, comfortable equipment, sometimes make the angle of tilt of the handle back too large. Because of this, it is not always convenient to use the tool. Masters experience numbness or overexertion in their palms, and a callus appears between the thumb and index finger. You need to switch the direction of rotation with one hand, this has to be done quite often. Which cordless screwdriver is better ? Reviews will help you decide, but best if you hold your choice in your own hands. It is also a good idea to make sure that the selected instrument is perfectly balanced.

Selection according to the specifics of the work

It may seem that a screwdriver is a universal tool. Actually this is not true.

So, for those who assemble furniture, more compact models are suitable. They are convenient because you can work even in the most difficult to reach places, and the force and torque are sufficient for reliable and high-quality assembly. The drilling mode is practically not used here. So, for drilling, purchase a more powerful cordless . Which is better? Makita provides a large selection of professional tools at a very affordable price. Screwdrivers from this company have high performance and are very convenient.

These tools are also used for installing plasterboard structures. Here, manufacturers offer two-speed models with a capacious battery. For this type of work, the weight of the tool is very critical. For work on the ceiling, models with one speed without a collet-based chuck are suitable.

In special installation work, power is important. Therefore, choose a cordless , which is better in terms of additional functions. Consumers want a device that can replace both a hammer drill and a drill.

Sources:

https://www.moyo.ua/news/kak-vybrat-akkumulyatornyy-shurupovert-6-sovetov-i-reyting-iz-5-krutykh-modeley.html https://obzorteka.ru/ogorod/shurupovert-ili -akkumuljatornaja-otvertka.html https://psydesign.net/shurupovert-Makita-ili-hitachi-chto-luchshe/

Planetary gearboxes

These devices use planetary type gearboxes. Often in such designs you can find three satellites. The carrier is rigidly attached to the crown, it has a lower gear. If the device is capable of producing up to 25 Nm of torque, then the gearbox device is predominantly plastic. For torques up to 50 Nm, manufacturers allow a plastic housing. If this is a powerful tool intended for professional use, the gearbox consists only of metal parts. When choosing a cordless screwdriver , which one is better is not difficult to guess. Metal parts have much higher durability and reliable service life.