When setting up the drill stop, what is the importance of the drill bit contacting the stringer?

The correct answer emphasizes the misconception about the role of the drill bit contacting the stringer. While it may seem that the contact is not essential, in the context of aerospace assembly, proper setup of the drill stop has significant implications for accuracy and integrity of the assembly.

When the drill bit does contact the stringer, it ensures that the drilling is performed at the correct angle and depth, which is critical for maintaining the structural integrity of the assembly. This contact allows for better alignment of components, especially when skin panels are involved. The stringer acts as a reference point, helping to stabilize the drilling process and minimizing variations that could lead to misalignment.

Moreover, preventing over-drilling is critical in aerospace applications where materials are precision-engineered, and excess material removal could compromise strength or aerodynamics. Thus, while one might think that contact with the stringer isn't essential, it is in fact a key factor in achieving the desired outcome in the drilling process, ensuring consistent quality and performance in aerospace assemblies.