How should electric tools be purchased?

1. According to needs, distinguish between home use and professional use. Most electric tools are designed for professionals, and when choosing, it is important to distinguish between professional and general home use tools. The difference between professional and general household tools is usually in terms of power. Professional tools have a higher power to facilitate professionals in reducing workload. General household tools, due to their small engineering size and relatively small workload, do not require a large input power.

2. The outer packaging of the tool should have clear patterns and be undamaged. The plastic box should be sturdy, and the buckle for opening the plastic box should be secure and easy to use.

3. The appearance of the tool should be uniform in color, with no obvious shadows or dents on the surface of the plastic parts, no scratches or collision marks. The assembly misalignment between the shell parts should be ≤ 0.5mm, the aluminum casting coating should be smooth and beautiful without defects, and the surface of the entire machine should be free of oil stains and 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. The nameplate parameters of the tool should be consistent with those on the CCC certificate. The manual should include detailed addresses and contact information of the manufacturer and manufacturer. There should be a traceable batch number for the product on the nameplate or certificate of conformity.

5. Hold the tool with your hand, turn on the power, frequently operate the switch to start the tool frequently, and observe whether the on-off function of the tool switch is reliable. Simultaneously observe whether there are any abnormalities in the television and fluorescent lights on site. To confirm if the tool is equipped with a useful radio interference suppressor.

6. Run the tool with power on for one minute, and hold it with your hand during operation. There should be no obvious abnormal vibration in your hand. Observe the commutation spark, and its commutation spark should not exceed 3/2 levels. Generally, when viewed from the air inlet of the tool, there should be no obvious arc light on the surface of the commutator. During operation, there should be no abnormal noise.

Drilling tools powered by electricity. It is a conventional product in electric tools and also a high demand electric tool product. The annual production and sales volume accounts for 35% of China's electric tools. It is reported that in the next ten to fifteen years, the world's sales of electric tools will grow at an annual rate of 5%. Electric tools are a type of "low value consumables". In Europe and America, electric tools are not only used as a tool, but also as a gift, becoming a mutual gift, thus having great market development potential.