Which tool can be used to loosen extremely tight screws?

An impact driver is specifically designed to loosen extremely tight screws and bolts by delivering high-torque rotational force. This tool functions by combining rotational motion with a series of concussive blows, which helps to break loose rusted or tightly fastened screws that could not be easily loosened by hand tools alone.

The design of an impact driver allows it to handle tougher tasks, making it ideal for applications where high torque is required. When the tool is activated, it not only turns the screw but also hammers it in the direction of rotation, effectively loosening stubborn fasteners without stripping the screw head.

Using a screwdriver alone may not provide enough torque for extremely tight screws, while a wrench and a socket are primarily suited for nuts and bolts rather than screws. This makes the impact driver the most suitable choice for loosening difficult screws.