The device is connected directly to the mains voltage. The speed is continuously adjusted via the rotary knob using electronic speed regulation. The contact pressure of the blades is achieved by centrifugal force. The blades are made of carbide and can easily be replaced, as well as the complete blade head. - The speed is adjusted according to the wire diameter: Thin wires Smaller speed - Thicker wires Greater speed. For stranded and shielded cables adjustable knife heads can be supplied. Connection voltage 120V.