What is a common tool used for tightening nuts and bolts during assembly?

A torque wrench is specifically designed to apply a specific amount of torque to fasteners such as nuts and bolts. This precision is crucial in assembly work, as overtightening or undertightening can lead to mechanical failure or damage to components. A torque wrench often includes a measurement scale or a mechanism that indicates when the desired torque level has been reached, ensuring that the fasteners are tightened correctly according to specifications.

In contrast, a hammer is typically used for driving nails or adjusting objects but does not provide the precise control needed for tightening fasteners. A screwdriver is intended for driving screws and lacks the torque measurement needed for nuts and bolts. Pliers, while useful for gripping and twisting, cannot measure or control the torque applied to fasteners. The torque wrench stands out as the essential tool for this purpose, emphasizing the importance of using the right tool for safe and effective assembly practices.