The invention relates to an endoscope having an endoscope head and an Albarran lever that is attachable to the endoscope head. The Albarran lever has the following: a tool guide surface with which a tool that is guidable through a working channel of an endoscope may come into contact, and a detent device for form-fit locking to a force transmission section of the endoscope head of the endoscope that is actuatable from a proximal side of the endoscope, wherein the force transmission section transmits a force to the Albarran lever in order to pivot the Albarran lever.