Any wrench that achieves a specific torque setting.
How to use a Torque Wrench:
Any wrench that will display on a scale or make a sound when a proper specification of torque setting has been reached as the tool is being used to tighten a fastener.
Torque Wrench as seen in Basic Engine Building:
A good torque wrench is about the size of a breaker bar to give adequate leverage for high torque values.