E motors employed in the handy held vibrator series are each equipped with four small rubber dampers on the handheld handle and the motor frame. The result is that the handy baby flexible series are attenuated in vibration in the flexible hose, while the handy held vibrator, handy punch, handy scraper, handy wall-concreting, and handy tamper series are of a double-damped structure together with the rubber dampers on the motor and the vibrating unit mounts. These are therefore designed to be easy on the workers' hands.