How is a hammer drill different from a drill

Perforator device. How does he work. Features of fastening of the drill. Cartridge. Impact energy. Cost

If you are planning to carry out repairs yourself in the house and expect to drill a large number of holes, you, of course, need hammer drill.

The perforator is not inferior in popularity electric drills, being one of the most popular electrical tools used in the repair business.

The main task of the puncher is the operation of drilling holes in difficult to process materials such as concrete and stone. But, as an addition, there is also the possibility of drilling holes in metal, brick and other materials, the processing of which is often encountered in the process of repair.

Despite the similarity of the principles of action, perforators differ in their characteristics from impact drills. This is due to the fact that the drills are designed to work with ordinary materials, not very well processing solid.

The main difference between a puncher and a drill with a percussion mechanism is that the percussion function of the drill is realized purely mechanically, while the puncher uses pneumatics or an electromechanical device for this purpose.

Pneumatic rotary hammer drive pushes the firing pin - a heavy mechanical piston that strikes at a snap. The impact function of the drill helps increase the power of shocks during drilling.

The impact of the punch must be powerful enough to allow the material to chip. That is, the drill punch does not drill material, but chops.

Another difference between a punch and a drill is design feature of the drill mount. Most often, a perforator does not have a chuck with a cam clamp, like a drill, since such a design cannot guarantee protection against turning the drill, and also does not provide free play, which allows to increase the force of impact. It is for this reason that the drill is secured in the hammer with a new type of chuck (SDS +).

This type of fastening provides free movement, ease of replacement, and also eliminates the possibility of turning it during operation. But at the same time, the cartridges can be equipped with both key and quick chucks, which is typical for various models of even one manufacturer.

The presence in the puncher of a separate mechanism responsible for the impact allows you to implement three modes of operation of the tool: conventional drilling, drilling with impact and only impact.

Punch mode is the main. This is a mode designed to strobing, chipping tiles, cutting down partitions when the walls are destroyed. Impact energy is the main characteristic of a hammer drill.

Unlike a drill, for which power is the main characteristic, impact energy defines maximum drilling diameter. Often, punchers, with similar power, have different impact energies, which determines for them different types of work performed.

Impact energy is measured in joules, varying, depending on the model, in the range from 2 to 6 J. The larger this indicator, the more complex tasks the tool can perform: from mounting and drilling small holes to destroying capital partitions made of bricks and drilling into concrete .

Punch cost, Of course, more than drills with shock function, but high reliability, durability and ease of use will greatly facilitate the implementation of independent repairs in the house.

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