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Torque wrenches are types of tools that are used to place a torque onto a fastener. The types of fasteners that are used with this kind of tool are usually nuts and bolts. You may think that this sounds like a job for a screwdriver. But, basic screws and the nuts and bolts needed for this job, are not the same things. These wrenches have internal mechanisms that and are more like a socket kind of wrench.

This tool was first invented to prevent the over-tightening of bolts. What constitutes a torque wrench is that it is used when closer control of the tightening of bolts is needed. The torque can be measured to enable the operator to match the requirements of certain application methods.

Types:

There are multiple kinds of this tool available. Read further to learn the features of the main types.

• Beam: This has a straight indicator bar. The main shaft is bent according to the amount of force on the handle. The display on this tool indicates torque of around 18 N.m or 160 inch-pound. The simplest model has a long lever between the head and the handle. It is constructed from a material that can bend according to the torque to which it is applied. This model is not only very simple, but it is affordable and very accurate.
• Deflecting Beam: This uses the mechanism of placing torque on a deflecting beam, instead of a spring coil. This model is safer, and is more durable. The readings are also very accurate.
• Click: This has a calibrated clutch. The clutch slips when the necessary level of torque is reached. The most widely used varieties have a spring or a ball detent. The ball detent exerts the force. The click model is one of the most popular as it is very precise because of the instant release once the needed torque level has been met. There are variations in the models of this type, according to different torque levels and applications.
• ”No Hub’: This type is most commonly used by plumbers. They use it tighten the bands on soil pipe couplings. These have been manufactured so as to automatically stop when the torque level of clamping bands is reached. It has a T handle and it also includes another handle to loosen these clamps.
• Electronic: These have electronic digital display indicators of the torque. You can select the type of unit the torque is to be measured in. It can also save several measurements on an internal memory. The saved measurements can be transferred onto a computer or printed directly. This is very handy for people or companies that have quality assurance policies or process documentation. There are models of this type of wrench used in the automotive manufacturing industry because they can measure angles as well.

Now that you are familiar with different kinds of torque wrenches, you can select the one that best suits your needs and the task for which it is intended.

Company Profile:

Screwfix is the UK’s largest direct and online supplier of trade tools, accessories and hardware products. With over 30 years’ experience in the industry, we despatch tens of thousands of parcels every week for next day and weekend delivery to tradesmen, handymen and serious DIY enthusiasts all over the UK.

Click here to view the full range of torque wrenches from Screwfix.com

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