HS-645MG Servo

The HS-645MG is one of our favorite servos of all time. We use this servo
for all types of robotic applications and industrial products. The
reliability and performance that you get for under $40 is
fantastic. Metal gears, dual ball bearings, seperated motor and circuit
board make the HS-645MG a top choice whether your project is robotics,
aircraft, cars or trucks. We offer the HS-645MG in several configurations, 90° stock rotation, 180° modified rotation,continuous rotation (potentiometer is left outside the servo case) and reverse rotation.