A method and apparatus for drilling a hole through a first part and a second part. An image of a first pilot hole in the first part may be generated using an imaging system. A first feature related to the first pilot hole in the first part may be identified based on the image. A second feature related to a second pilot hole in the second part may be identified based on the image. A drilling vector for drilling the hole through the first part and the second part may be identified based on the first feature and the second feature.