✔ You need to check that the hole has the correct tolerance
✔ You need to check the surface finish
✔ You need to check the hole countersink
✔ You need to check exit and entering of the hole
Our assembly process settles for the perfect hole and total control of end results.
Thus, inspecting the quality of the hole according to the requirements (correct tolerance, diameter, roundness, perpendicularity, surface finish, etc.) is an important step in the whole aerospace assembly process.