How to Buy Power Tools
1 Selection method
Taking the indoor ceiling as an example, the ceiling is made of reinforced concrete. It will take a lot of effort to drill a hole with an impact drill, but this will not happen when it is used to hit the wall. Therefore, the impact drill is suitable for daily use in the family. But for drilling workers, hammer drills should be the first choice.
When hitting the wall, the hammer drill will be more labor-saving than the impact drill. The key is that the structure and working principle of the two are different. The impact drill needs constant application of force to make it rotate during the use of the hammer drill. , just apply a little force at the beginning to make the drill move forward automatically.
Hammer drill - For home use, it is most suitable to buy a hammer drill with a price of about 750 yuan.
2. Precautions for purchase
1. Selection of electric drill size. As the size of the electric drill increases, its price will also increase, and the size of the electric drill for home use is generally 20mm.
2. Selection of additional functions for electric drills: the same model will have some additional functions. For example, if there is an R in the model, the drill can be reversed. The advantage is that when the forward rotation fails, it can be converted to reverse rotation; An E means that the drill can be adjusted in speed, and can be adjusted to run at a low speed when a high speed is not required.
3. When you see the promotion of the electric drill set in the furniture supermarket, don't be overwhelmed and buy it immediately to see if it is practical.