Torque wrench for connecting a replaceable instrument tip to a hand piece, system comprising a torque wrench and an instrument tip and method for connecting an instrument tip to a hand piece

Torque wrench for connecting a replaceable instrument tip to a hand piece that carries the replaceable instrument tip in operation, a base element having a receiving region for placing the instrument tip inside the receiving region at least during connecting the instrument tip to the hand piece, a torque wrench mechanism for applying a certain torque when connecting the instrument tip to the hand piece and a housing surrounding the instrument tip being arranged in the receiving region, the housing being preferably transparent, wherein the torque wrench has a guiding structure for aligning the torque wrench relative to the hand piece during arranging the torque wrench on the hand piece, in particular in an interface region of the hand piece, and/or where the housing has an inner surface and an outer surface being concentric to each other over a complete primary region extending at least from the base element to the end of the instrument tip, when the torque wrench is equipped with the instrument tip.