Electric screwdriver, alias electric batch, electric starter, is an electric tool used for tightening and loosening the screws. The electric tool is equipped with a torque-regulating and torque-limiting mechanism, mainly used for assembly lines, and is one of the necessary tools for most manufacturers.
1. Different from family use or professional use according to the needs. Most electric screwdrivers are designed for professionals, and they should be different between professional use and general family use. Usually professional and general family batch difference in power, professional batch power is larger, in order to facilitate professionals to reduce the workload of the general family batch because the project is small, the workload is relatively small, so the input power of the batch does not need to be very big.
2. The outer packaging of the electric batch should be clear, without damage, the plastic box should be strong, and the buckle of the plastic box should be firm and durable.
3. The appearance of the electric batch should be uniform in color, no obvious film wire and dents on the surface of the plastic parts, no scratches or bump marks, the assembly between the shell parts should be misplaced by 0.5mm, the aluminum casting paint should be smooth and beautiful without defects, and the surface of the whole machine should be free of oil and stains. When holding with hands, the switch handle should be flat. The length of the cable should generally not be less than 2 meters.
4. The nameplate parameters of the electric batch should be consistent with the CCC certificate. The instructions shall have the detailed address and contact information of the manufacturer and manufacturer. The nameplate or qualification certificate shall have a traceable batch number.
5. Hold the electric screwdriver by hand, turn on the power supply, operate the switch frequently, make the tool start frequently, and observe whether the on-off function of the electric screwdriver switch is reliable. At the same time, observe the scene of the TV, fluorescent lights whether there are abnormal phenomenon. To confirm that the electric screwdriver is equipped with a valid radio interference repressor.
6. The electric starter shall be powered on for one minute, and hold it by hand. The hand shall not feel any abnormal tremor obviously, and observe the changing spark. During operation, no normal noise should be made.
