The visual, optical inspection of surfaces in bores is difficult and personnel-intensive, especially in short cycle times. Hommel-Etamic has been involved in the automatic inspection of the surfaces of engine components, such as cam shafts, for many years. The company plugs another automation gap with the development of the IPS-10 internal inspection sensor. Its special feature is the combination of a short inspection time with a high resolution. The internal inspection sensor is especially suitable in cases where component bores have to be inspected in short cycle times. This applies to a number of components in the automotive industry such as main brake cylinders, wheel brake cylinders, pistons, valve housings or injection system components. Hydraulic and pneumatic components such as valve blocks are also typical areas of application for the new development.