What term refers to removing the rough edge of holes remaining after the drill process?

The correct term for removing the rough edges around holes that remain after the drilling process is "deburr." This process is essential in aerospace assembly because sharp edges can create stress concentrations and potential failure points in components, as well as pose safety risks during handling and assembly.

Deburring ensures that the edges are smooth, which can improve the fit and function of the parts being assembled, enhance their aesthetic appearance, and reduce any potential for corrosion initiation around these edges. This is especially important in aviation where precision and reliability are paramount.

While "chamfer" refers to creating a beveled edge on a corner or edge, which also contributes to easing assembly but is not specifically about hole edges left from drilling, "finishing" is a broader term that encompasses various processes to improve surface quality but does not specifically target the removal of sharp edges or burrs. "Debris" refers to waste material or leftover particles, which is irrelevant to the process described in the question. Thus, deburring is indeed the appropriate and specific term for the activity mentioned.