Hitec HS646WP Standard Analogue Cored Servo 60g 11.6kg/0.17s 6.0V - 7.4V 2221915Hitec HS 646WP Standard Analogue Cored Servo 60g 11. 6kg 0. 17s 6. 0V 7. 4V 2221915 Our new waterproof servos have what it takes to keep your radio control vehicle, airplane or robot watertight! With high torque, dual ball bearings and metal gears, our analog waterproof servos have the industry's first IP67* rating ranking them among the most durable and reliable servos for wet conditions. Whether you are manning your power boat, bashing in the mud,