What Is An Impact Screwdriver For?

Why do you need an impact screwdriver An impact driver is a modern tool that allows you to screw self-tapping screws, screws into particularly hard surfaces.

Advantages and Disadvantages of Impact Tools

For many buyers who are faced with the choice of which drill or wrench to choose, the question arises as to how the impact driver is superior to the impactless model.

  • The increased torque allows the technician to apply significantly less effort when working with the tool, without pressing on the body itself. For most models, the values ​​of this indicator are in the range from 80 to 250 N / m.
  • The possibility of using not only for self-tapping screws, but also for working with nuts. With the free running of the product, the screwdriver works in the standard mode, when resistance occurs and the nut runs smoothly along the thread, the mode automatically switches to the impact mode.
  • Since there is no need to apply excessive force to tighten the bolts and screws, the caps will not deform. The power of the tool is also sufficient for reverse action. Unscrewing parts that have changed their original shape or rusted;
  • The ease of use also helps to relieve stress on the user’s hand and wrist.

The limitations and disadvantages of impact-producing screwdrivers include a decrease in the screwing speed during impact mode, since the tool’s actions are concentrated on the turning moment and on the quality of work. Also, only hexagonal chucks can be used. The degree of twisting must be controlled independently, since there is no limiting clutch. There is also an increased noise level when working at high speed.

Differences between a traditional drill and an impact type screwdriver

Before many craftsmen who choose tools for home use or for work, the question arises, what is the difference between the not yet well-known impact-type screwdriver and the usual standard electric drill. With a similar appearance, the main difference is the principle of operation:

  • In the first case, the tool has an impact mechanism, which drives the drill, while increasing the torque;
  • A standard electric drill is based on a two-stage gearbox.

This distinction is beginning to show itself, giving an advantage to the percussion type tool when working on hard and particularly difficult surfaces. When the drill senses resistance, it sends out a series of powerful and quick blows that multiply the torque and make it much easier to tighten the fastener.

It is also worth distinguishing between an impact screwdriver and a drill. With the same principle of operation, they have a different direction of impact. For a drill, this is longitudinal, and for a screwdriver, it is perpendicular to the direction of rotation. The process of action of the tool is most clearly represented as small blows with a wrench while tightening the nut.

Why do you need an impact screwdriver

In the arsenal of each owner there is a tool that allows you to tighten or unscrew a screw, a self-tapping screw, to make minor home repairs, assemble furniture, drill a wall for a new picture. Automatic electric drills greatly simplify the process, allowing you to drill almost any surface without much effort and unnecessary debris.

Now on the market there is a huge selection of tools from different manufacturers, models, wired and mobile, for various surfaces and with different operating principles. According to experts, among the colossal variety of drills, the most productive, convenient, versatile and multifunctional is the impact driver.

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What is a screwdriver for?

A screwdriver is a necessary thing for the home. It will help speed up the repair time. You do not have to spend a lot of energy and spend time on many hours of twisting or unscrewing screws and other fasteners with a screwdriver.

what is an impact screwdriver for?

Why do you need a screwdriver

With a screwdriver, you can do it in 4 steps that will take a matter of seconds:

  • Place the hardware in the hole;
  • Bring the screwdriver to the element;
  • Press the button;
  • Release the button.

You can also make holes in various materials (wood, stone, metal) with a screwdriver.

Battery

The screwdriver can operate both from the mains and be equipped with a battery. When buying a stand-alone option, you don’t have to look for an energy source. This option is more mobile and suitable for work in the field. You will not be burdened by the presence of a cord. But the price for this option will be at least 1.5 times higher.

Just on the batteries, you will see the value of Ni-Cd or Li-ion. The first option says that this is the nickel-cadmium option. It is most commonly installed on home screwdrivers. It does not have such a long service life (up to 1000 recharges). In addition, it has a charge memory. This suggests that it needs to be completely discharged and only then charged. Otherwise, the battery capacity will decrease. The lithium-ion (Li-ion) has no such problem, but the price is also higher. Therefore, when choosing a screwdriver for the home, you need to ask yourself about the frequency of use. If you rarely use it, it is better to stay with the cheaper option.

Now you know how to choose a cordless screwdriver. Let’s now talk about the benefits of the mains option. It:

  • Low price;
  • No need to spend money on batteries;
  • There is no need to charge the batteries every 2030 minutes.

Although the option that provides autonomous work is more in demand, the second category also has the right to exist and be actively used.

Torque

The first parameter (Nm) means torque and is responsible for the force of the device. For simple household needs related to the usual twisting and unscrewing of self-tapping screws, 1012 Nm will be enough. If roofing works are planned, then it is necessary to choose the option with 20 Nm. In any case, if you take a screwdriver for your home, then 30 Nm will be enough for you. You will be able to carry out any work, even with bricks, metal and not worry that the battery will quickly discharge due to the applied force.

Disadvantages of Impact Screwdrivers (Impact Wrenches)

  1. Low drilling speed when switching to hammer mode.
  2. Inapplicability of jaw chucks (only hexagons) with rare exceptions.
  3. Inapplicability of the torque limiting clutch, due to which the tightening process has to be monitored all the time independently, which is not always convenient at a high speed of rotation of the tool shaft.
  4. Increased noise in shock mode.

And in order to more clearly represent the difference between an impact screwdriver (nutrunner) and a conventional one, we will summarize their main technical characteristics in one table:

Differences between a traditional drill and an impact type screwdriver

Before many craftsmen who choose tools for independent use or for performing work, the question arises, what is the difference between not everyone’s recognizable impact-type screwdriver and an ordinary standard electric drill. With a similar appearance, the main difference is the mechanism of operation:

  • At the beginning, the tool has an impact mechanism that drives the drill, increasing the torque at the same time;
  • A standard electric drill is based on a two-stage gearbox.
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This distinction is beginning to show itself, giving an advantage to the percussion type tool when working on hard and particularly difficult surfaces. When the drill senses resistance, it sends out a series of powerful and quick blows that multiply the torque and make it much easier to tighten the fastener.

It is also worth distinguishing between an impact screwdriver and a drill. With the same principle of operation, they have a different direction of impact. For a drill, this is longitudinal, and for a screwdriver, it is perpendicular to the direction of rotation. The process of action of the tool is most clearly represented as small blows with a wrench while tightening the nut.

Disadvantages of Impact Screwdrivers (Impact Wrenches)

  1. Low drilling speed when switching to hammer mode.
  2. Inapplicability of jaw chucks (only hexagons) with rare exceptions.
  3. Inapplicability of the torque limiting clutch, due to which the tightening process has to be monitored all the time independently, which is not always convenient at a high speed of rotation of the tool shaft.
  4. Increased noise in shock mode.

And in order to more clearly represent the difference between an impact screwdriver (nutrunner) and a conventional one, we will summarize their main technical characteristics in one table:

Impact cordless screwdriver: what is it

A screwdriver is a handy electric tool that allows you to quickly unscrew and tighten bolts, nuts and screws. Modern screwdrivers are most often equipped with a battery, which makes it possible to use the device over the entire area without being tied to the length of the cord. These screwdrivers have the following advantages:

  • Small mass of the device, which makes it possible to easily hold it in one hand;
  • Low rotation speed, which allows you to unscrew the fasteners and not lick its notches;
  • The ability to adjust the torque for more convenient screwing in fasteners of different sizes;
  • The presence of a reverse motion for unscrewing the fastening parts.

The main disadvantages of cordless screwdrivers are reduced to one thing. This is a low power up to 20 V for unscrewing a bolt or self-tapping screw firmly seated in the base. An impact driver was developed to solve this problem. This tool has a higher power up to 36 V. There are both mains and cordless versions. The principle of operation of such a device lies in the fact that when, for example, a self-tapping screw in a tree is jammed, the electrical device automatically exerts a shock load on the fasteners, loosening it. over, this happens not along the axis of the screw, but along the axis of rotation. The device stops, abruptly gives the instant maximum rotation speed to the fastener and lowers it to normal speed. The cycle of such operations is repeated until the self-tapping screw is unscrewed. As a rule, an impact screwdriver will quickly deal with this problem.

Differences between a traditional drill and an impact type screwdriver

Before many craftsmen who choose tools for independent use or for performing work, the question arises, what is the difference between not everyone’s recognizable impact-type screwdriver and an ordinary standard electric drill. With a similar appearance, the main difference is the mechanism of operation:

  • At the beginning, the tool has an impact mechanism that drives the drill, increasing the torque at the same time;
  • A standard electric drill is based on a two-stage gearbox.

This distinction is beginning to show itself, giving an advantage to the percussion type tool when working on hard and particularly difficult surfaces. When the drill senses resistance, it sends out a series of powerful and quick blows that multiply the torque and make it much easier to tighten the fastener.

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It is also worth distinguishing between an impact screwdriver and a drill. With the same principle of operation, they have a different direction of impact. For a drill, this is longitudinal, and for a screwdriver, it is perpendicular to the direction of rotation. The process of action of the tool is most clearly represented as small blows with a wrench while tightening the nut.

Impact screwdriver for what you need

Hand tools are needed to solve the problems of fastening or dismantling, drilling holes or destroying old fragile plaster. For example, hammers, screwdrivers, pliers and punches, but it is better to use electrical appliances. These machines will save you time and energy, and will help you do all the work accurately. There are screwdrivers, impact drills, and screwdrivers. Which one is better for home or professional use?

  1. Impact cordless screwdriver: what is it
  2. Why do you need a cordless impact screwdriver?
  3. Cordless impact drill
  4. Conclusion

Cordless impact drill

Probably, many have an idea of ​​what an impact drill is. A conventional drill is a tool designed for drilling holes in tough materials. It can be manual, pneumatic or electric. Among home craftsmen, the most common device is an electric drive. Today, these drills have the additional battery and impact capacity that should help or accelerate the drilling of a hole in a stubborn wall. With the help of special nozzles, this electrical device can unscrew or tighten fasteners, which include bolts, nuts, screws or self-tapping screws. However, this is not easy to do as the machine torque is too high even if the rotational speed is set to low.

An impact drill has the same properties as a conventional drill, but has the ability to move the rotary body along its axis. This means that when drilling materials such as high-strength concrete, this function must be applied, and then the drill not only rotates the drill, but also makes a large number of hits with it.

Impact cordless screwdriver: what is it

A screwdriver is a handy electric tool that allows you to quickly unscrew and tighten bolts, nuts and screws. Modern screwdrivers are most often equipped with a battery, which makes it possible to use the device over the entire area without being tied to the length of the cord. These screwdrivers have the following advantages:

  • Small mass of the device, which makes it possible to easily hold it in one hand;
  • Low rotation speed, which allows you to unscrew the fasteners and not lick its notches;
  • The ability to adjust the torque for more convenient screwing in fasteners of different sizes;
  • The presence of a reverse motion for unscrewing the fastening parts.

The main disadvantages of cordless screwdrivers are reduced to one thing. This is a low power up to 20 V for unscrewing a bolt or self-tapping screw firmly seated in the base. An impact driver was developed to solve this problem. This tool has a higher power up to 36 V. There are both mains and cordless versions. The principle of operation of such a device lies in the fact that when, for example, a self-tapping screw in a tree is jammed, the electrical device automatically exerts a shock load on the fasteners, loosening it. over, this happens not along the axis of the screw, but along the axis of rotation. The device stops, abruptly gives the instant maximum rotation speed to the fastener and lowers it to normal speed. The cycle of such operations is repeated until the self-tapping screw is unscrewed. As a rule, an impact screwdriver will quickly deal with this problem.