The ornamental design for a controlunit for dentaldrilling equipment, as shown and described.
FIG. 1 is a front, right side perspective view of a control unit for dental
drilling equipment showing our new design;
FIG. 2 is a rear, left side perspective view thereof;
FIG. 3 is a front, left side perspective view thereof, the broken line
drawing of a stand is shown for illustrative purposes only and forms no
part of the claimed design; and
FIG. 4 is a side elevational view thereof, the other side being a mirror
image.