So you’re trying to learn more about different types of tools, and you’ve recently read about torque wrenches and are interested in learning about the different types?
You’ve come to the right place!
As you probably know if you are reading this article, a torque wrench is a type of wrench designed to apply torque (force around an axis) to a bolt or nut. Torque wrenches are distinguished from other types of wrenches, which is elaborated on toptorquewrench, because they can measure and control the amount of force that is applied allowing the proper amount to be used and ensuring that the bolt or nut is neither too loose nor too tight.
Let’s start with the most simple designs and work our way up.
Simple Torque Wrench
A simple torque wrench is usually just a long wrench with an analog needle on it. When the wrench tightens a bolt, the needle will move and point to the value representing the amount of force being used (for example, 50 pounds of force). These will occasionally need to be calibrated, and since the needle is often exposed, it may be bent or moved accidentally and no longer point to the correct value.
There are also electronic torque wrenches that work the same, except instead of an analog gauge they have a digital display. The advantage to this is that it can be easier to read because the value is shown in numbers as well as being easier to read with less light (assuming it is bright or uses a backlit display) such as if you’re working on a big piece of machinery that is blocking the light.
There are torque wrenches that can be set to a certain level of force that will stop applying force once that level is reached to help prevent over-tightening. With this type, you don’t have to focus as much on the gauge because it will stop tightening at the correct force.
Hydraulic torque wrenches
Hydraulic torque wrenches use hydraulics to tighten or loosen a nut or bolt. This type of wrench uses a predetermined amount of torque and can operate more quietly than similar pneumatic wrenches, not to mention many people feel hydraulic wrenches are a better choice because of the precise nature involved in tightening bolts.
If you’ve got a lot of bolts to tighten, you had better not be using an ordinary wrench or ratchet. Not only will this make things take longer, you risk having some nuts and bolts tighter than others. By using a torque wrench, you’ll drastically enhance your ability to work quickly without growing fatigued. The consistent pressure will also ensure that you are applying uniform pressure to each nut and bolt. Like links in a chain, a series of bolts works together to ensure that an entire object is structurally sound. If you want the object or structure to be safe and stand the test of time; you simply can’t afford for even one bolt to be loose. If the exact torque specification is critical, always use a digital torque wrench.
Of course, the proper type of wrench will depend on the job. For working on your car, ayou will probably find that a standard wrench with an analog gauge works just fine.