When should the drill stop be slid onto the drill bit in relation to the drill guide?

The drill stop should be slid onto the drill bit before the drill guide is engaged. This sequencing is important because it ensures that the depth of the hole being drilled is accurately controlled from the beginning of the drilling process. By placing the drill stop on the bit ahead of time, you set a predetermined depth that prevents the drill bit from penetrating too deeply into the material, which can lead to damage or inaccuracies in the workpiece.

If the drill stop is adjusted after the drill guide is already in place, there is a risk of misalignment and not achieving the desired depth, which could compromise the integrity and quality of the assembly. Therefore, adhering to this order of operations is vital in maintaining precision in aerospace applications where tolerances are critical.