Residents of houses made of cast concrete, panels or bricks often need to prepare holes for fastening, for example, a cornice or shelf. To do this with an ordinary electric drill does not work. Choosing a reliable and convenient tool is not an easy task. Which puncher to buy for a house, a summer residence, or the provision of professional services will help to understand this material.
Punch Selection Criteria
The choice of a punch is influenced by: the technical characteristics of the models, the weight of the tool, its dimensions. However, for the consumer, first of all, it is necessary to decide what kind of work and how often he has to carry out. When it comes to episodic work, it is enough to purchase a budget punch with minimal capabilities, but if overhaul is ahead, it is better not to save.
The frequency of use and the load on the tool determines which model to buy - home, semi-professional or for professional builders. Having figured out the type and frequency of work, we can proceed to the study of the main characteristics of these devices:
Power. This indicator, depending on the purpose of a particular model, can vary from 1 to 15 J. Household perforators have a low impact power - up to 3 J. Semi-professional products - from 3 to 8 J, and powerful construction machines already from 8 to 15 J.
Energy consumption. Accordingly, power is dependent on energy consumption. Home appliances consume from 0.4 kW, and professional ones - up to 1.5 kW.
The number of revolutions. The number of rotations of the drill per minute is also distinguished by power: household punchers give from 600, and professional - up to 1500 revolutions.
Type of cartridge. The type of cartridge used to attach the drill depends on the purpose of the punch. For household models, for example, Hitachi firms, SDS-Plus cartridges are used, designed to fix drills up to 30 mm in size. For construction and semi-professional products, SDS-Max holding devices are available, for drill bits up to 52 mm, and SDS-Top, which can hold drills from 16 to 25 mm.
Type of food. Most models are manufactured under standard 220V mains voltage, but for special types of work the most convenient option is cordless rotary hammers. They are lightweight and practical if you have a long work to do on a stepladder. Professional pneumatic rotary hammers can be produced under voltage 380V.
Hit frequency. This indicator indicates the number of beats per second. The higher this value, the faster it will be possible to drill the desired hole.
Mode of operation. Professional models are most often designed solely for shock when drilling and performing the functions of a bit, which is required for punching niches or removing tiles from walls. In home appliances, an ordinary drill mode is often provided. There are also models that, in addition to the functions of conventional and hammer drilling, can produce only impacts.
When deciding to purchase a hammer drill, you should consider all the characteristics and do not forget about the purpose of the tool. Cheap is not always bad, the main criterion is suitable parameters for repair tasks.
What is the key difference between professional and home punch
The differences between a professional and a household punch are as follows:
- For the manufacture of professional tools use special plastic reinforced with reinforcement. Plastic in household appliances is less durable;
- for the manufacture of all components and some parts of the body in professional rotary hammers, steel is used, and in home models of steel only shafts and gears are assembled;
- for fixing the case in professional models use bolts and nuts, while the home ones are assembled on screws;
- professional punch terminals are bolted, and for home ones - spring.
The listed differences are the main ones.
The main feature of professional rotary hammers, in comparison with household appliances, is the service life and the length of the full load without interruptions. They are significantly higher than in home appliances.
The best home punchers
When you have to work with a puncher infrequently, and from case to case, it makes no sense to acquire a powerful device. For ordinary work, a domestic, average in power, punch, but with an optimal set of functions, is quite enough.
Makita HR2470
A unique tool at a low price (up to 7,000 rubles).
Universal tool weighing 3 kg. Designed for use in three modes: drill, hammer drill and in the slotting mode. The device allows you to get holes up to 24 mm.
To quickly change modes, the design provides a level control of rotation, the ability to block the spindle and reverse. Safety clutch allows safe work in any position.
TO pluses models include:
- 4-meter cable, allowing to work at a great distance from the power source;
- ergonomics;
- a sufficient set of functionality for the layman;
- low noise and responsible assembly approach.
Of disadvantages This model is noted only by an ill-considered adjustment of the control of the depth of drilling.
This device is recommended for frequent work inside the apartment, and it is also suitable for rare production tasks.
Daewoo Power Products DAH 920
Excellent equipment for only 5,000 rubles.
This tool can work as a drill, puncher and jackhammer of small power. Convenient fixation of the start button allows drilling without severe fatigue, also an additional plus is the reverse function.
DAH 920 is equipped with a unique complete set. In a standard plastic case there are three drills of different diameters, a chisel for chiselling solid foundations, a peak, a second handle to facilitate the drilling process, and a depth gauge.
TO pluses tools include: good power for a household appliance, 4 modes of operation, a high level of assembly and rich equipment.
Of cons - insufficient length of the power cord.
You can’t use this model for professional needs, but as a home tool, it fits perfectly.
Bort bhd-800n
Reliable and powerful hammer drill costing from 3500 rubles.
Inexpensive Chinese rotary hammer perfectly copes with drilling hard surfaces. Concrete and stone will not be an obstacle to a compact and lightweight tool.
The standard equipment includes the ability to change the spindle mount and change the direction of rotation, as well as frequency control. It is impossible to call the BHD-800N a professional rotary hammer, but it copes well with long-term loads.
TO pluses This model includes:
- optimal power for domestic use;
- excellent build;
- multifunctionality;
- improved equipment (3 drills);
- low cost.
Of cons - a very short cable.
The optimal model for power for such a cost.
Military RH500
A sufficiently reliable device for home use at a price of just over 2000 rubles.
Despite the low cost, the model has two operating modes (drill and perforator), reverse and the ability to adjust speed.
TO pluses RH500 models include light weight, low cost and a sufficiently long cord that allows you to work away from the power source.
Minuses:
- due to insufficient power, the blow is very modest;
- during continuous operation, the gearbox begins to heat up and there is a danger of burnout.
This device is suitable for infrequent operation, for drilling it is not designed every day.
The best rotary hammers for professional use
For builders, using devices designed for one-time work is disadvantageous. A large load on the tool implies increased wear of the mechanisms, so professional devices are used for permanent work on the construction site.
For special work, special apparatuses with increased power, but small dimensions, are also required. From an endless list of power tools for builders, the following models can be recommended:
Makita HR5001C
This model belongs to the most powerful devices, the impact force is 17.5 J, the frequency is maintained at the level of 2150. In HR5001C, in addition to standard drilling, a slotting function is provided. The device can easily cope even with the strongest reinforced concrete, but for its operation you need to have good muscular strength, because the mass of the device is 10.8 kg.
TO pluses models include:
- level of assembly and materials used;
- lack of engine overheating during prolonged drilling;
- maximum protection;
- the presence of the function of monitoring the condition of the brushes.
Of the negative characteristics, only the high price of the device and its accessories, as well as a large mass, are noted.
DeWALT D25762K
The increased power (up to 18 J) and frequency (2300 strokes) allow you to cope with any surface when drilling with this hammer drill. A second holding handle is included in the standard kit.
TO pluses devices include:
- decent power;
- maximum drill diameter up to 80 mm;
- vibration protection and the function of monitoring the condition of the brushes.
TO disadvantages include only the price.
Bosch GBH 8-45 DV
This device of German manufacturers is attributed to lightweight devices (8.9 kg) and simultaneously powerful (12.5 J). A second holding handle and lubricant are standard. The frequency is maintained at 2760 beats.
TO pluses models include:
- long time use in heavy duty;
- vibration control system;
- light weight and ergonomic arrangement of control buttons.
Minuses during operation not detected.
The best cordless rotary hammers
In some cases, a tool is required to carry out work that is independent of the power source in place. Mobile cordless rotary hammers are convenient for working at heights when a standard cord with an extension cord may not be enough to connect the tool to a fixed network, or in hard-to-reach places where it is difficult to get with a heavy and inconvenient cable.
Electricity is often turned off at the dachas, and at the beginning of the construction of a country house, it may still not fail. It is for such situations that professional builders try to purchase a hammer drill with a powerful battery that allows you to work for a long time.
The most interesting battery models in 2019 include two:
Makita DHR242Z
Makita brand can be safely attributed to one of the most popular among manufacturers of professional and semi-professional tools. The DHR242Z cordless rotary hammer differs from the others in the presence of electronic speed control.
In addition, it is equipped with an anti-vibration system. The force of impact is up to 2 J, and the maximum frequency reaches 4700 strokes. The low idle speed (950 per minute) does not affect the performance of this mechanism.
Tip: for smooth operation, a cordless rotary hammer must immediately buy a spare battery. While you are working with one, the second at this time can stand on charge or just be at hand, if necessary, continue to work.
TO pluses The DHR242Z cordless rotary hammer includes: fast charging (25 minutes is enough for the battery to gain 100% charge), brushless motor device, smooth starting acceleration and the presence of electronic speed control.
Of cons We can name insufficient rotation speed and the need to purchase an additional battery to ensure smooth operation.
Bosch GBH 18 V-EC 0
The TOP of cordless rotary hammers includes products from this well-known company. In terms of price and quality, Bosch products can always be found at the top of the tool ratings.
This model is suitable for repair in an apartment or in the country, as well as for a professional builder. The tool maintains revolutions at the level of 1400, the number of strokes - 4550. Thanks to the presence of a protective mechanism that prevents peak overloads, the tool will last at least 5 years with intensive use. Three modes allow you to make holes in a monolith, brick or wood. In the latter case, the drill mode is selected.
TO pluses German cordless rotary hammer include: a small mass, the presence of LED bulbs that allow you to work in twilight or difficult places, battery life and effective protection.
Cons during operation of this model is not identified.
Optimum punch for value for money
Those who are thinking about which puncher is best to buy for the home can be advised to buy inexpensive, but effective and ergonomic equipment - Makita HR2300.
The cost of this device in various stores does not exceed 9,000 rubles, while it has a small weight and is suitable for working at heights. Makita HR2300 is considered a semi-professional tool, so manufacturers have become preoccupied with such a feature as the convenience for left-handed people - changing the reverse is done with one hand without tearing off the other hand from the handle of the punch.
Makita HR2300 is equipped with an additional handle with a locking button. Setting the rotation mode of the drill allows you to drill in delicate surfaces, such as ceramic tiles.
A high-quality and inexpensive hammer drill will be the best tool for home use when performing any kind of work.
What is the difference between a hammer drill and a hammer drill
Before choosing a hammer drill for homework, you should understand the differences between a drill equipped with the possibility of impact with a function and a hammer drill.
Impact drill allows you to perform the following actions:
- drilling in various materials without striking;
- obtaining holes in a brick using impact;
- twist the screws like a screwdriver. Such an action requires a certain skill.
The hammer drill is used to carry out the following actions:
- drilling holes in strong concrete walls;
- chiselling of surfaces with a chisel. It allows you to quickly dismantle ceramic tiles, perform gating under the wiring in a strong wall and punch a large opening.
The main distinguishing feature of the punch is that, due to a different principle of the mechanism, it has a greater impact power than a standard percussion drill. In addition, it is more durable under conditions of frequent use for drilling sturdy surfaces.