What is an important characteristic of drill templates in aerospace assembly?

Drill templates play a crucial role in ensuring precision during the aerospace assembly process. Their primary function is to accurately position components for drilling, which is essential in maintaining the integrity and alignment of aircraft structures. By providing a predefined location for drill holes, templates help avoid errors that could arise from manual measurement or alignment. This accuracy is vital in aerospace applications, where even minor deviations can lead to significant structural issues.

In contrast, the other options imply uses or limitations that do not reflect the full functionality of drill templates. For instance, while they can assist in marking, their role extends beyond that. Templates are designed for repeated use, maintaining their effectiveness across multiple applications. Their interchangeability depends on design specifications, but they are generally custom made for particular components to ensure maximum precision.