1. Distinguish between household use or use according to needs. Most electric tools are about personnel planning, and should be distinguished from general household use when purchasing. Generally, tools used in households differ from general household tools in terms of power. Tools used in general households have relatively small engineering and relatively small workloads, so the input power of tools does not need to be large.
2. The outer packaging of the tool should be clearly pictured and not damaged. The plastic box should be stable. The buckle used to open the plastic box should be strong and durable.
3. The appearance of the tool should be uniform in color, there should be no scratches or bumps on the surface of the plastic parts, the device misalignment between the shell parts is ≤0.5mm, the aluminum casting coating should be lubricated and beautiful, and the surface of the whole machine should be free of stains. When holding by hand, the handle of the switch should be flat. The length of the cable should generally not be less than 2 meters.
4. Hold the tool with your hand, turn on the power, operate the switch again and again to start the tool again and again, and check whether the on-off function of the switch is reliable. Check together whether there are any abnormalities in the TV and fluorescent lamps on site. In order to admit whether the tool is equipped with a useful radio stirrer.
Drilling tools that use electricity as power. It is a conventional product in power tools, and it is also a product in demand power tools. The annual production and sales of electric tools account for 35%. According to reports, in the next ten to fifteen years, world sales of electric tools will increase at an annual rate of 5%. Electric tools are a kind of "low-value consumables". In Europe and America, electric tools are not only used as a kind of thing, but also as a gift, turning into a gift for each other, so there is a large market development.