An electric drill is a type of power tool that is often used in everyday life. It is sold in professional hypermarkets and small roadside hardware stores. select it. After all, there are a lot of fish and dragons in market, and you can buy fake and low-quality goods if you are not careful.
If you want to buy an electric drill that suits you and is of good quality, it is recommended to pay attention to these 5 aspects.
1. Check out usage requirements
Electric drills include hand drills, impact drills, electric hammers, etc., depending on our needs to decide which one we need to buy. Screw only, choose electric screwdriver; screw only and slightly open holes, such as drilling holes in wood, red brick, glass, metal, tiles, electric drills; both screws and open holes, sometimes for lightweight concrete. For drilling, choose an impact drill; for screwing, as well as drilling or even breaking concrete, choose an electric hammer.
2. See more features
An electric drill of same model will have additional features. For example, R in model indicates that drill can be reversed, and advantage is that it can be converted to reverse when forward rotation fails; E in model indicates that electric drill can adjust speed and select high speed. or low speed according to actual use case. It depends which one you want.
3. Look at 3C logo
The electric drill is a mandatory certification product set by National Certification and Accreditation Authority. Therefore, when purchasing, first of all check for presence of 3C mark on outer packaging or on name plate of instrument. You can also check tool on package. website of National Authority for Certification and Accreditation. Whether 3C certificate is currently valid, parameters on nameplate and in instructions must match parameters of 3C certificate.
4. Look at appearance of electric drill
The appearance of electric drill should be uniform in color, there should be no obvious shadows and dents on surface of plastic parts, and coating of aluminum castings should be even and beautiful without defects. It feels good in hands, power button is normal, and cable length is generally not less than 2 meters.
5. Choosing a brand of electric drill
As a general rule, when buying an electric drill, you should choose a large brand with a good reputation and influence. Although price is relatively high, these big brands have strong technical strength, strict quality control, and relatively standardized after-sales service. .
Once selected, it is recommended to run an electric drill to check. Turn on electric drill and let it run for one minute. Hold it with your hand while you work. You should not feel any abnormal vibration. Watch for reverse sparks. Reverse sparks must not exceed level 3/2. As a general rule, view from air at instrument inlet. There should be no obvious arc on surface of collector. During operation, there should be no extraneous noise.