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Electric screwdriver selection skills
Jul 17, 2017

1, according to the need to distinguish between home or professional use, the majority of electric screwdriver is designed for professionals, when shopping, should distinguish between professional and general household electric screwdriver. Usually the professional and general household electric power in batch, professional use electric power is larger, in order to facilitate professionals to reduce the workload, general household electrical engineering group due to smaller, the workload is relatively small, so the input power group also don't need much.

2. The outer packing of the batch should be clearly patterned and not damaged. The plastic case is firm and the plastic case should be firmly and durable.

3, the number of electric appearance should be uniform color, no obvious effect of plastic wire surface and dent, no scratch or bump traces, assembling dislocation between parts of 0.5mm shell, aluminum casting coating is smooth and beautiful without defects, the surface shall be free from dirt and stains. When holding by hand, the handle of switch should be smooth. The length of cable should be no less than 2 meters.

4. The nameplate parameters of the batch shall be in accordance with the CCC certificate. The instructions should have detailed address and contact information of the manufacturer and the manufacturer. The nameplate or certificate shall have a batch number traceable to the product.

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 to observe the scene of TV sets, fluorescent lamps are abnormal. To make sure that the electric screwdriver is equipped with a valid radio interference suppressor.

6, electric screwdriver to run electricity for a minute, running hand holding hands, there should be no obvious feeling any abnormal fibrillation, observe the commutation spark, the commutation spark should not exceed 3/2, generally from the air inlet of the electric screwdriver at the inside, there should be no obvious arc on the surface of the commutator. Running should be without exception of normal noise.

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