Handheld screwdriver machine with screw feeder is made of three main parts: screw feeding system, screw sorting system and screw locking system. Compared with the normal electric screwdriver, this portable screwing machine with automatic feeding system for product assembly is with high efficiency (50-70screws/min) because the blowing system ensure screws are directly blown to the clamping head, worker no need to pick up the screws anymore.The purchase of a handheld screw fastening machine can save 1-2 people for the factory. Automatic production line handheld screwdriver machine is small in size with low cost,no additional consumables are needed except for air supply, applicable for M2-M6 screws, highly used in assembly line.