What tool is commonly used for removing a brake line in automotive repair?

The use of a tubing wrench for removing a brake line is highly effective due to its design. A tubing wrench features a unique shape that allows it to grip the hex-shaped fittings found on brake lines securely. This design prevents the line from being damaged during the removal process, which is crucial since brake lines are often made of softer materials like copper or aluminum.

Additionally, the tubing wrench can apply more torque compared to other tools, ensuring that the fitting can be loosened without rounding the edges. This is particularly important in brake line applications, where tight connections are common, and precision handling is needed to avoid leaks after reassembly.

In contrast, tools like pipe wrenches can grip with a crushing force that could distort or damage the brake line fittings. A screwdriver is not suitable for this task, as it lacks the appropriate grip and torque capabilities. Similarly, while socket wrenches can be helpful for various tasks, they are not typically used for brake lines due to their design being less ideal for the tight spaces and specific shapes associated with brake fittings. Therefore, the tubing wrench emerges as the appropriate tool for this automotive repair task.