For home affairs, a different tool is needed, including a shock drill: without it, do not hang a picture, do not fix the cornice or shelf. What shock drill to choose what to pay attention to? This question is asked by many during the visit to a specialized store. In order for the choice of shock drills to be thoughtful, first should be armed with information about this tool.

Impact drill: device executable and additional options

The principle of operation of the shock drill mechanism is based on the transfer of the drill with two ratchet and rotational, and reciprocating movement (impact). The power of the tool of this type is from 400 to 1500 W, the frequency of rotor revolutions of the electric motor - up to 3500 rpm. The higher the power and frequency - the easier it is to work the tool.

It is useful in many cases the reverse function: it is necessary to extract the stuck drill or to unscrew the screw.

The ability to choose the optimal speed reduces the load on the tool. The rotation frequency of the cam is adjustable to press the finger pressure on the starter.

What a shock drill is better

It all depends on what it will be used. For the drilling of concrete and natural stone, a powerful tool is needed. In this case, it is necessary to acquire a drill network: the battery will not cope with the task. If the hole is necessary in the slag block wall or laid out of foam concrete blocks - it makes no sense to spend money on a heavy and powerful drill: there will be a low-sword tool 400 - 600 W. The rechargeable version in this case is suitable: "Mobility" will expand its scope. The presence of a switch of shock and unstressed drilling functions is required.
It is also recommended to consider:

• the time of continuous operation (should be indicated in the passport from the manufacturer): A professional tool has a large load limit;
• maximum diameter and type of used boome (depends on cartridge): For home use, the SDS standard is used, more powerful - SDS-Plus;
• cartridge design: There are options for the rapid extraction of the bora
• complete set (storage suitcase, additional handle, drill set, drilling depth limiter, various nozzles and adapters);
• ergonomics of the case and handles: if the tool is convenient to keep in hand, and the finger is easily reaching the starting jug - it will work safely.

The surface should not be slippery. It is important that the drill is balanced by: the center of gravity should be closer to the handle with a launcher (in the absence of an additional handle) or in the middle. Soft rubber overlays will reduce the vibration transmitted by the hands.

Main technical characteristics

How to choose a shock drill according to technical specifications, can suggest sellers consultants in the store, but to select the tool on the Internet it is necessary to own information. Attention should be paid to the following specifications.
1. Power drill: the speed of rotation and force depends on it. Most of the power tool located in the average price segment, have a capacity within 550-800 W. For home use, such a shock drill is suitable, but the concrete drove is a lighter to a professional tool with a capacity of 1000 W and more.
2. Frequency of shocks and revolutions: The higher the value of this parameter is the higher the "performance" drill. Most part of the rotation frequency of various models - from 2500 to 3000 rpm. Special controller allows you to reduce it if necessary. The frequency of beats affects the speed of the material being processed and is within 43 - 48 thousand shots per minute.
3. Diameter of drilling (maximum): This parameter limits the use of the tool to prevent its failure. Information about the value of this parameter is indicated in the driver's drill passport. The drilling of the larger diameter holes in the solid material is accompanied by critical loads on the engine and the drill mechanism.
4. Type of cartridge: This tool item is designed to fix the drill. There are cartridges key and quick-release. A special key is needed for the key cartridge, in the quick-release drill manually inserted. This saves time, but the key cartridge is more reliable.
5. Reverse is a special feature that facilitates the removal of the drill in the case of its encoffin in the material. It also allows you to use a drill to unscrew screws and screws.

Examples of the most popular models

The German company Bosch has established itself as a manufacturer of reliable technology. The Bosch GSB 21-2 RCT Professional shock drill has a capacity of 1300 W, which allows it to be used for professional purposes and operate continuously for a long time. The model is suitable for stirring dry building mixes, for drilling with crowns.

Functions:

• monitoring the constancy of the frequency of turns of electronics;
• the ability to pre-select torque;
• Antirotation coupling protects against damage during complex works;
• The belt holder provides when rotating clockwise and against the same force.

Makita has long been popular with professionals and home masters. Drill Impact Makita HP1640 can be used to drill any materials: wood, metal, brick, concrete and others. The power drill is 650 W, the number of revolutions is up to 2800 per minute. This light and small tool capable of drilling holes in concrete with a diameter of up to 16 mm, in the wood - 30 mm; In steel - 13 mm.

Drill Impact Intercol Du-16 / 1000irs - Domestic tools with good characteristics and equipment:

• 1000 watt electric motor;
• two-speed reducer;
• Reversible rotation of the cartridge;
• The possibility of smooth adjustment of the speed of rotation;
• Ergonomic case.

Hitachi DV16 VSS shock drill (Japan) can be recommended for home use, but it refers to the class of professional tools. The key cartridge reliably holds the drill, and the drilling depth limiter will not be mistaken.

The power drill is 600 W: it is sufficient to drill the concrete drill with a diameter to 16 mm. Side extra handle allows you to securely hold the tool in your hands.