Which Torque is Better For a Screwdriver
A screwdriver is an important tool that no construction or repair work can do without. In the modern market, all available types are used for various purposes. This device is especially useful for small homework. With its help, it is easy to tighten and unscrew the fasteners (screws, screws, screws), drill, and also mix glue or putty.
By type of power, all screwdrivers are divided into:
- Rechargeable, battery powered. Because of them, the weight of the screwdriver becomes larger, but the approach to uncomfortable places is much easier.
- Network: functioning when connected to an outlet. Because of the power cable, they have a small range, which can be increased by means of an extension cord.
Also, screwdrivers are divided into groups according to their purpose. Among them stand out:
- Devices for construction or repair tasks;
- Screwdrivers for workshops, automobile centers, production shops;
- Tools for industrial plants and factories;
- Models for domestic (home) use.
Torque. what is it?
Torque is an indicator with which you can set the load on a screwdriver.
Usually it is in the range from 5 to 10 Nm, which allows you to quickly, efficiently and without problems to perform work.
Such a load is used for domestic and semi-professional models.
She easily drills metal plates, screws large self-tapping screws, and also works with concrete.
What torque is needed for a screwdriver to work well? This is determined by the purpose of the tool. For example, for a universal device, it is better to choose the maximum indicator. This will allow him to work equally successfully with self-tapping screws and rigid materials.
If a screwdriver is purchased for drilling wooden blocks, then the cheapest household model with a low torque is suitable. For example, 400-500 rpm can easily tighten the screw. But for drilling holes in solid surfaces, you need to select the speed of 1200-1300 per minute.
Ratio to screw diameter
When acquiring a screwdriver, an emphasis should also be placed on the ratio of screw diameter to speed. To do this is quite simple:
- For a screw of 6 mm, the rotational speed during its tightening will be 10 Nm. If the construction of the material is very soft or hard, then the frequency will increase to 25 Nm.
- For a 7 mm screw, the torque is 27 Nm for hard surfaces and 11 Nm for soft.
- A torque of 30 Nm is used for an 8 mm screw (maximum value).
The right choice of speed allows you to not only work with greater efficiency. It also provides high quality, reliability and a long service life for the screwdriver. With high torque tasks are completed faster, and the wizard does not make much effort.
Video: Which Torque is Better For a Screwdriver
For mains powered tools, rotational power does not have a major impact on performance. But the battery models sit much faster. That is why it is recommended for professional tools to always have a spare battery or a device for quick charging. When buying professional tools, spare batteries are usually included, but owners of household models will have to purchase them on their own.
Important! When buying a tool, it is worth paying attention to the presence of a reverse stroke mode, it will help to release the nozzles during a jam. Reverses are electronic on screwdrivers; on-off switches are used to turn them on, located next to the start key.
Which is better?
A screwdriver is considered a device adapted to perform several types of work. It is useful not only in construction. This device can also be used effectively for domestic purposes: assembling furniture, laying heating pipes and electrical communications. For the correct selection of the tool, they look at the torque, which affects the convenience and quality of the result. For example, a simple screwdriver is suitable for assembling cabinets, and when installing interior floors, it is better to purchase a professional powerful model.
Also, screwdrivers (like drills) are often used to mix building mixtures. To use this function, you have to additionally purchase a nozzle in the form of a mixer. To do this, high torque is also required. If you choose equipment with low power, you can’t create a sufficiently viscous, homogeneous mixture or a high-quality solution.
If a screwdriver is planned to be used for different types of work, then there is a speed controller on it. When using it, the torque is changed by the master accordingly with the specific type of task. In the process of buying a tool, they look at the control button latch. It should work constantly, and not only at the time of pressing, this will provide additional convenience when using the tool.
Below is a table with the characteristics of some screwdrivers, including the maximum torque:
Important! To change the torque, the masters choose a model with manual or electronic control. It contains a step-down transformer necessary to change the voltage during operation with liquid mixtures.
Work with viscous mixtures
If during work it is planned to use a screwdriver for mixing mixtures, then it is better to purchase a device with high power. Simple household models will find it difficult to complete this task. Mixing requires high torque, which is present only in professional devices. You can additionally use mechanical built-in gears, they will allow you to get a high-quality result even in the first mode. A cooling system is also foreseen in order to avoid the likelihood of a motor failure.
For household fastening of shelves or fixing cornices, a powerful screwdriver is not required, for these tasks, torque is not important. But if you need frequent use of a screwdriver for several types of tasks, you should opt for a professional or semi-professional model.
When buying a screwdriver for home use, several factors and parameters are taken into account at once. They decide in advance whether a professional model is needed, or whether it is possible to do with a simple household tool. This will help you plan your budget. Then you have to study the functionality of the selected device, technical specifications. The focus is on torque.