How does a torque wrench work?

[WASSupp]

Torque Wrenches are calibrated to apply a certain amount of torque to a fastener. The amount of torque that is applied depends on the amount of force on the tool’s handle and the length of the wrench. To work out the torque, the torque formula is force x length = torque.
The handle contains an internal mechanical indicator which connects to a calibrated scale. When the indicator determines the desired torque has been reached, stop twisting the bolt.

[JohnStaples]

Hi all, on the road can happen anything and no one is not insured against anything, so I regularly buy different tools, such as torque wrench, a really useful thing, I recommend it! Go in and take a look just to see, looks very impressive! Do you have any tools in your car?