（1）. Foldable handle easy for storage and transportation.
（2）. Durable gear box guarantee good performance.
（3）. Rugged four-in diameter gripper clutch enables smooth operation from floating to finishing speeds.
（4）. Automatic stop system for work safety.
（5）. Smooth operating screw control knob make it easy to adjust the blade pitch between 0~15 degree.
（6）. Standard throttle control.