True or False: A pin punch of equal size to a rivet shank should be used during removal.

Using a pin punch of equal size to a rivet shank during removal is not advisable because it could damage the surrounding material or the rivet itself. Ideally, a pin punch that is slightly smaller than the rivet shank should be used. This allows the punch to fit into the rivet's head without causing excessive stress or damage to the structure being worked on.

When using the correct size punch, it provides more precise control and reduces the likelihood of deforming the rivet or the surrounding area. Employing a punch that matches the size of the rivet shank might prevent the working end from effectively transferring force, leading to potential issues during the removal process, such as difficulty in extracting the rivet or unwanted deformation.

Understanding the sizing and application of tools, like pin punches, is crucial in aerospace assembly and maintenance to ensure the integrity of the aircraft structure and components.