Precision is one of our many qualities. To optimize tolerances in the factory of the future, we use drill hole measurement technology for our fastening systems. This improves the drill hole quality and prevents incorrect positioning. The drill hole and countersink parameters are measured with a dual camera system which provide reliable results even when there is dust on the surface. To achieve this, Broetje-Automation provides eight measurement tools depending on the customers needs that provide a complete range of drill hole measurement data and prevent unreliable test results as far as possible. The selection of measurement methods include hole probe measurement, chip detection open hole, drill hole diameter measurement, countersink diameter measurement, color detection, position sensor, dual position sensor and a normality sensor. With an overall process accuracy of 0.025mm/0.001″ for the drill hole measurement it increases the quality of the structure immensly.