A rotary hammer includes a spindle 18 which can be rotatably driven by an intermediate shaft 24 by way of a drive device. Thus, highly efficient recognition is possible using a small number of models. The spotlight can be moved by the user moving a cursor positioned in the circle. The solar selective coatings were annealed in air and vacuum to test the thermal stability at different temperatures and durations. A first pair of electrical terminals is provided to couple the HART\xae communication circuitry to the two-wire process control loop in a first configuration, and a second pair of electrical terminals is provided to couple the Fieldbus communication circuitry to the two-wire process control loop in an alternative second configuration.