A digital headset system for use in audiometric testing. The system includes a housing fixed to the engine, a socket rotatable in pawl-and-ratchet fashion within the housing, and a socket aperture eccentrically disposed relative to the socket’s axis. A delivering unit acquires the job definition data and the image data by communicating with the exclusive access control unit, selects a printer driver corresponding to the output destination, and transmits a print command to the printer driver. The standard is mounted on the tubular member for easy rotation by the hunter so the hunter may aim in a wide arc without unfastening or loosening any fasteners and without moving the vehicle. The present invention describes a process for the preparation of rhodium and iridium compounds which are used as starting compound for various organorhodium compounds and organoiridium compounds, in which the reaction, starting from a rhodium or iridium salt, is carried out in at least two steps, where different solvents or solvent mixtures are used in each. For example, various tools such as trowels, knives, and scrappers may be made having at least a portion of their blades heat treated to make at least their working edges more durable and extend their useful lives.