Select an electric screwdriver

As the saying goes, “if a worker wants to do good, he must first use his tools.” Although a small electric screwdriver is very common, there are certain knowledge about how to choose and use it correctly.


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1, according to the need to distinguish home use or professional use, most electric screwdriver is designed for professional personnel, in the selection and purchase should distinguish between the professional and the general household electric screwdriver. Generally, the electrical batch difference between the professional and the general family is on the power, and the professional use of electrical batch power is larger to ease the workload of the professional. Generally, the electrical batch is small because of the smaller work and the workload is relatively small, so the input power of the electric batch is not very large.
2. The outer packing of the electric batch should be clear and undamaged. The plastic box is strong. The buckle of the plastic box should be strong and durable.
3, the appearance of the electric batch should be color and lustre even, the surface of the plastic parts have no obvious shadow silk and dent, no scratch or bump marks, the assembly dislocation between the shell parts is less than 0.5mm, the aluminum casting coating is smooth and beautiful and no defect, the surface of the whole machine should have no oil pollution and stains. When holding the hand, the handle of the switch should be smooth. The length of the cable should not be less than 2 meters in length.
4. The nameplate parameters of the electric batch should be consistent with that of the CCC certificate. Detailed instructions and contact details should be given to the manufacturer and manufacturer. The nameplate or certificate should have a batch number that can be traced back to the product.
5, hold the electric screwdriver with the hand, connect the power supply and operate the switch frequently, make the tool start frequently, and observe the reliability of the switch function of the electric screwdriver switch. At the same time, it was observed whether the TV and fluorescent lamps on the scene were abnormal. In order to confirm whether the electric screwdriver is equipped with an effective radio interference suppressor.
6, the electric driver is operated for one minute, and the hand is held by hand. The hand should not feel any abnormal tremor and observe the change spark. The commutation spark should not exceed 3/2 level. When running, there should be no normal noise.