An apparatus for the industrial measurement of bores in a measurement object is provided. The apparatus includes a measurement probe which can be introduced into the bore and at which at least one distance sensor is provided with which the instantaneous distance of a reference point of the measurement probe from a wall of the bore can be determined. The measurement probe is rotatably supported at a holder which is fixed with respect to the measurement object and/or whose position relative to the measurement object is known. An evaluation device receives a number of sequentially determined distances in the course of a rotation of the measurement probe.