Apparatus and method for measurement of workpieces

An invention relates to an apparatus and a method for tactile-optical measurement of geometric features or structures on a workpiece. In order to make exact alignment of the probe extension to perform precise measurements without problems, a probe comprising an at least partially flexurally elastic design probe extension (13) is provided with an attachment portion for insertion into a receptacle (14) having a formed as a torsion fixing portion (60) having.