What is a common method to create a starting point for pilot holes?

Using a method to create a starting point for pilot holes is crucial for accuracy and efficiency in drilling. Rotating the drill chuck by hand serves to position the drill bit precisely at the desired location, ensuring that it penetrates the material accurately when drilling begins. This technique helps prevent the drill bit from wandering off the intended path, which is particularly important in aerospace assembly work where precision is paramount.

Marking with a pencil might seem useful, but it does not provide the same level of assurance for starting the hole correctly; it can be less effective on certain surfaces or when precision is critical. Drilling without any marking can lead to misalignment, and avoiding the use of tools altogether would prevent the creation of pilot holes entirely, making it impossible to proceed with the assembly task accurately. Thus, rotating the drill chuck by hand provides a reliable method to ensure that the hole is initiated correctly, underscoring the importance of precision in aerospace assembly tasks.