Create a drill start with a drill motor and pilot bit
Drill a pilot hole
Exchange a pilot bit for a larger drill bit
Set a drill stop
Enlarge a hole to size
Inspect a full size hole using a Go/NoGo pin gauge
Course Description
Pilot holes are typically the first holes drilled in any assembly. They are usually too small to accommodate the shank of any standard fastener, so they must be enlarged before fasteners can be installed in the assembly.