Abstract: A multiple coordinate feeler apparatus, comprising a housing, a feeler arm axially projecting beyond the housing, the feeler arm having a feeler ball formed at the free end thereof and being axially displaceably supported in the housing and being supported at the housing universally rotatable up to a predetermined maximum angle by a spherical joint of a ring seat formed in a housing plate and of a spherical joint head formed at the feeler arm and rotatably supported on the ring seat, a slide being supported by the spherical joint head and being slidable in the housing against the force of a return spring, the slide being coupled with an indicating means indicating the sliding quantity of the slide, the joint head being liftable out of the ring seat by the axial displacement of the feeler arm.