For several models which were made in January and February of 2017
This wrench is not part of a basic accessory.
Early BLPR models from 2017 had a cap over the main gear that didn't have a screw in the middle which is used to refill the vaseline in the engine. This was intended as the vaseline was planned and tested to be changed once every few months (basically at our service points). After the intensive testing this BLPR type was quickly changed and so newer BLPR caps have the screw in the middle as all the other models before and after have.