Style No.: Automatic Screw Dispenser Product Name: Automatic Screw Dispenser Brand:Airsource Automatic Screw Supply Models: 514, 517, 520, 523, 526, 530, 540Features:Small size, exquisite, easy to operate;High work efficiency, 4 times faster than the circular type;Special detecting circuit, energy saving;Various models for different type of screws.