Handheld screwdriver machine is made up of high-quality parts with advantages of low consumption, high efficiency and stability,it is suitable for automated assembly in the electronics industry such as cameras, mobile phones, hard disks, keyboards, printers, computers, DVDs, home appliances, toys, appliances, communication equipment, electronic processing and assembly,etc. Handheld screwdriver machine is made of three main parts: 1.Screw feeding system. 2. Screw sorting system. 3. Screw locking system. These three systems are controlled by the machine's program. http://www.dgbobet.com/dgweb-166281.html