Which of the following is NOT a purpose of using a sander in airplane assembly?

Using a sander in airplane assembly primarily focuses on smoothing and finishing surfaces, deburring edges, and removing excess material. Each of these tasks enhances the quality and safety of the assembly by ensuring that surfaces are free from roughness, burrs, and other imperfections that could affect structural integrity or aerodynamics.

Cutting large holes, however, is not a function suited to a sander. Sanders are designed for surface finishing work rather than for cutting through materials. The tools appropriate for cutting large holes in aircraft components would typically include drills, hole saws, or other cutting devices specifically engineered for that purpose. Therefore, using a sander for that task would not align with its intended design and use in aerospace assembly. This differentiation helps ensure that the assembly process is efficient and that the components are prepared correctly for assembly and operation.