General classification of
Most models of drills with a perforator have at least two rotational speeds. They are equipped with a system providing a smooth descent, a speed regulator and a reverse. The reverse gives the opportunity to change the direction of rotation, that is, allows you to both twist and unscrew the screws and screws during operation.
To select the operating mode, there is a preset speed setting. The depth of drilling is controlled by a restrictive stop. In , depending on the power sources, the drills are battery and mains. Such a factor as the intensity of the load divides them into professional and household. The latter are necessary for large loads for a long time.
By their reliability they are much better in quality, because they are made of the best materials. The advantages of a household drill can be attributed to the low price and ease. However, the working resource is limited to both the number of hours of operation and the drilling time per approach. Before buying a drill, you need to know clearly for what loads it is intended.
How to choose a drill with a puncher?
How to choose the electric drill with a perforator of the greatest efficiency? This question arises in every consumer who has decided to buy a drill. For work with concrete and stone, powerful drills are needed with power from the network. The cordless tool should be used when it is not possible to connect to the network and when working with frequent movement. But there is a significant disadvantage - a short time of functioning. To some extent this compensates for the presence of two batteries in the kit.
The quick-action chuck is very comfortable. It is more comfortable than a gear crown, because the drill is clamped manually without a key. But there is a risk of fixing it loosely, which will affect the quality of the work. Also it is worth paying attention to the presence of an additional handle. It makes the execution of many processes much more comfortable.
One of the main conditions for using a drill is quality drills, only they will ensure the maximum efficiency of the tool. You can determine the quality of the drill by the manufacturer's trademark and by the instructions of the tool type and drill sizes. When buying a drill, you need to know about its capabilities in terms of service.
What should I consider when choosing?
To properly select an electric drill, you need to know the number of modes necessary for operation. The most common modes are as follows:
- Working in a simple drill mode;
- Impact drilling( this is the main mode);
- Mode of a jackhammer;
- Presence of a safety clutch, which during the jamming of the drill protects the engine and the person;
- Ability to change the direction of rotation, which allows using the tool as a screwdriver;
- Soft start option;
- Ventilation and protection against dirt and dust. Significantly increases tool life;
- Presence of the built in vacuum cleaner which removes a dust in a special bag.
All these functions affect the cost of the drill, so you should clearly decide which ones are needed and which ones are not. Also, it's worth remembering that consumables are not cheap, so it's advisable to buy a tool that will allow you to save and protect them as much as possible. A large price for such options will pay off after a certain amount of time.
Note! Drill, combined with a puncher, is an ideal tool that allows you to solve many tasks at once.