How to choose Zhonghan electric tools

Power drill products are suitable for drilling holes in steel, wood and plastic and are one of the most popular tools used in hand-held power tools. General hardware stores range from professional hypermarkets to small roadside hardware stores, all of which sell electric drills. In order to buy a satisfactory electric drill, you should generally pay attention to the following points.

1. Rotary Hammer 26mm Zh-26 products are mandatory certification products stipulated by CNCA. Therefore, when purchasing, you should first check whether the tool has the 3C mark. The method of checking is generally whether it is on the outer packaging of the tool or on the nameplate of the tool There is a 3C mark, if there is still doubt about it (because the manufacturer of the electric drill has not passed the annual supervision and review, the CNCA suspends or revokes its certificate), you can go to the CNCA website to check whether the 3C certificate of the tool is Currently valid.
2. Generally, when purchasing an electric drill, you should choose a large company with a good reputation and more influence, because these large companies have strong technical force, strict quality control, and standardized after-sales service. Users with strong purchasing power can also purchase some tools from international brands.

3. According to the needs of users, first distinguish between home use and professional use. Since most electric drills are designed for professionals, before purchasing, you should first distinguish between professional and general household tools. Generally, the difference between professional and general household tools is in power. Professional tools have higher power to facilitate professionals to reduce workload. General household tools have relatively small workloads due to small projects. Therefore, the input of the tools is relatively small. The power doesn’t need to be great either.

4. Observe the outer packaging of the electric drill. The outer packaging of the tool should have a clear pattern and no damage, the plastic box should be sturdy, and the hasp to open the plastic box should be firm and durable.

5. Observe the appearance of the electric drill. The appearance of the tool should be uniform in color. There should be no obvious shadows and dents on the surface of the plastic parts, and there should be no scratches or bump marks. The assembly dislocation between the shell parts is ≤0.5mm, and the aluminum casting coating is smooth and beautiful. No defects, the surface of the whole machine should be free of oil and stains. When holding it with your hand, you feel better in your hand, and the handle of the switch should be flat. The length of the cable should generally not be less than 2 meters.

6. Check the nameplate and manual of the electric drill. The nameplate parameters of the tool should be consistent with those on the 3C certificate. The detailed address and contact information of the manufacturer and the manufacturer should be included in the instruction manual. The batch number for traceability of the product shall be on the nameplate or certificate of conformity.

7. Hold the electric drill by hand, turn on the power supply, and frequently operate the switch by hand to make the tool start frequently, and observe whether the on-off function of the tool switch is reliable. At the same time, observe whether there are any abnormal phenomena on the TV and fluorescent lamps on site. in order to confirm that the tool is equipped with an effective radio interference suppressor.

8. The electric drill should be powered on and run for one minute. When running, hold it by hand. There should be no abnormal vibration in the hand. Observe the reversing spark. The reversing spark should not exceed the level, generally from the air inlet of the tool Look, there should be no noticeable arcing on the commutator surface. During operation, there should be no abnormal noise.

Post time: Feb-21-2022