These high quality marine windscreen wipers feature a powerful electric motor and separate worm wheel transmission. The wiping angle may be adjusted to 8 different settings, which means that the ideal wiping pattern can be found for almost any shape and size of window. This new version supplied with a tapered and knurled shaft end. This feature provides a stronger connection between the wiper arm and the motor drive shaft, resulting in a longer life span for both parts. Other technical features of this wiper motor: