Europa Hilt EBL20HD 20V Cordless Impact Hammer Drill with Brushless Motor + 2 x 2.0Ah Batteries + 1 x 20V Charger

What is Brushless Motor ? The induction motor has just one moving part, the rotor. The fact that it is a brushless motor means that it produces less audible sound. On the other hand, universal motors have brushes that can create sound, and that is why the pressure washers that run on a universal motor are noisy.