The invention relates to a wiper blade device comprising a main unit (10) and an adapter unit (14) which can be connected to a wiper arm (12) and is secured in a form-locked manner to the main unit (10) in at least one mounted state. The wiper blade device comprises at least one form-lock recess (16) that extends at least from a first face (18) to a second face (20) of the main unit (10) or the adapter unit (14).