Torque Wrench

The **torque wrench** enables precise torque application, either by measuring the applied torque or by interrupting the tightening process once the desired torque is reached. It operates on the principle of a flexible torsion bar connected to a tightening head, with a pointer attached to the torsion bar to indicate the current torque being applied. The moment of force, M, is a physical quantity measured in newton-meters (Nm). It is defined as the product of the force, F, and the perpendicular distance from the force's line of action to the axis, a. Therefore, the magnitude of the moment of force depends on both the magnitude of the applied force and the distance from the axis of rotation. The greater the distance, the larger the moment of force.