Review of the best according to the editorial board. On the selection criteria. This material is subjective and does not constitute advertising and does not serve as a purchase guide. Before buying, you need to consult with a specialist.
Rotary hammers are available for drilling and chiselling hard building substrates. The sound of this instrument is familiar to all residents of high-rise buildings. A combination of high power and good impact energy is required to form holes in concrete or brick. Today, a wide range of rotary hammers is presented on the domestic market. Our experts will help potential buyers choose the most powerful models.
Selection recommendations
Engine location. Heavy rock drills have two common designs.
- The vertical arrangement of the electric motor favorably affects the compactness of the tool (in terms of length). It is convenient to work with it in cramped conditions. The advantages of such a hammer drill are good engine cooling, resistance to high loads.
- To ensure the accuracy of the holes, the tool with a horizontal position of the motor allows. Experts attribute excellent balancing to the strengths of the hammer drill.
Power. During operation, the hammer drill, like any electrical device, consumes a certain amount of electricity. The most powerful models are equipped with 1500-2000 W motors.
Impact energy. The speed of drilling holes in concrete or masonry is independent of the force exerted by the operator on the hammer drill. The efficiency of drilling and chiseling is characterized by such a value as the impact energy. It is expressed in joules. The stronger the blow to the device, the more difficult it is to carry out the work. Powerful rock drills have an impact energy of 15 to 30 J.
Maximum drilling diameter. Each rock drill has a restriction on the diameter of the hole in the concrete.
- With the help of a drill, the most powerful models are able to make real holes in the base measuring 50-80 mm.
- But if you use a hollow crown as a tooling, the size of the niches can reach 150 mm.
Chuck type. When buying a hammer drill, you should pay attention to the type of chuck, especially if you already have drills from the previous tool in your arsenal.
- The SDS-Plus chuck is most commonly used on lightweight rock drills. For work, you will need a tooling with a diameter of up to 10 mm, in which the shank has 2 symmetrical grooves.
- SDS-top is less and less common in modern rock drills. The maximum tooling diameter is 14 mm, and the shank features 2 asymmetric splines.
- The SDS-Max is fitted with most medium to heavy rock drills. It reliably fixes large tooling with a diameter of up to 18 mm, the shank has 3 asymmetric grooves.
Additional options. To make the operator's job easier, manufacturers are equipping their products with a number of advanced features.
- The anti-vibration system helps to reduce the negative impact of shock loading on the hands.
- The fixing of the spindle allows quick and easy tool changes. It prevents the chuck from rotating when removing and installing the drill or drill.
- Electronic overheating protection is responsible for operator safety and tool durability.
- You can fully focus on drilling or chiselling in high-volume applications with the lock on the power button.
Our review includes 6 of the most powerful rock drills. You can buy them in specialized stores in the country. When allocating seats, the editors of the journal relied on the opinion of the expert community, taking into account the feedback from domestic users. The review is based on the analysis of the technical characteristics on the website https://rankquality.com/.
Rating of the most powerful rock drills
| Nomination | a place | Name of product | price |
| Rating of the most powerful rock drills | 1 | Milwaukee Kango 950 S (27 J) | RUB 92,820 |
| 2 | Metabo KHE 96 (27 J) 120 Nm | RUB 49,990 | |
| 3 | AEG PN 11 E (20 J) | RUB 48 199 | |
| 4 | BOSCH GBH 12-52 DV (19 J) | RUB 58,905 | |
| 5 | DeWALT D25773K (19.4 J) | RUB 53,378 | |
| 6 | Makita HR5001C (17.5 J) | RUB 50 491 |
Milwaukee Kango 950 S
Rating: 4.9
The professional hammer drill Milwaukee Kango 950 S demonstrates high efficiency. The model demonstrates the maximum energy at the level of 27 J, a decent impact rate (1950 beats / min), the tool is equipped with a powerful motor (1700 W). The hammer drill can be used to make holes in concrete up to 80 mm in diameter. In the case of a hollow crown, this figure rises to 150 mm. The experts praised the device for its effective anti-vibration system, thanks to which the operator is able to work comfortably for a long time. The model wins gold in our review.
Domestic builders are pleased with the capabilities of the rock drill, high performance and low vibration impact. The only drawback of the model is the high price.
Advantages
- power;
- soft start;
- effective anti-vibration system;
- electronic speed control.
disadvantages
- high price.
Metabo KHE 96
Rating: 4.8
The Metabo KHE 96 perforator is not inferior to the leader in power (1700 W) and impact energy (27 J). The tool is capable of making large holes in concrete (80 mm with a drill, 150 mm with a crown). The experts liked the model for its rich functional equipment. The anti-vibration system is designed to neutralize the shock effect, a special indicator allows you to monitor the wear of the brushes, an easy and quick change of equipment is ensured by fixing the spindle. For convenience, there is a power button lock, a drilling depth limiter. A pack of grease is included.
Users praise the high power, good anti-vibration system, convenient location of the removable handle. But with active use, the safety clutch is erased.
Advantages
- high power;
- ease of use;
- effective anti-vibration system;
- rich functional content.
disadvantages
- the safety clutch is erased.
AEG PN 11 E
Rating: 4.7
Experts consider the German AEG PN 11 E rotary hammer to be a durable professional tool. The combination of a powerful motor (1700 W) and high impact energy (20 J) allows the device to make deep holes in the hardest materials. In concrete, the maximum hole diameter when using a drill reaches 80 mm. The durability of the device is achieved through the use of a metal case and soft start. The safety clutch is designed to protect the hammer drill and the operator when the rig is jammed. An additional straight handle effectively complements the AVS anti-vibration system. Model receives bronze in review.
Builders admire the impact force, low noise level, endurance. Of the shortcomings, they highlight the unscrewing of the handle when working in chiseling mode.
Advantages
- high impact energy;
- endurance;
- effective vibration protection;
- low noise level.
disadvantages
- spontaneous loosening of the handle.
BOSCH GBH 12-52 DV
Rating: 4.6
The German BOSCH GBH 12-52 DV perforator can handle the most difficult tasks. The model is equipped with a powerful electric motor (1700 W), the maximum impact frequency is 2150 beats / min with an energy of 19 J. Reliable fixation of the rig is provided by the SDS-Max cartridge. The tool has a number of protective functions, this is a safety clutch, prevention of unintentional start, 3-level anti-vibration system Smooth start-up ensures high quality clean start drilling. A warning appears on the service display for scheduled maintenance.
In the reviews, Russian builders praise the hammer drill for its high performance, convenient cartridge, and operational safety. Users are dissatisfied with the large weight of the device.
Advantages
- high performance;
- reliable fixation of the equipment;
- smooth start;
- safety.
disadvantages
- great weight.
DeWALT D25773K
Rating: 4.5
The DeWALT D25773K rotary hammer allows to work with a wide range of building bases. It can be brickwork, blocks or monolithic concrete. Experts note the combination of high power (1700 W), good energy (19.4 J) and maximum impact frequency (2210 bpm). The hole diameter in concrete is 51 mm using a drill. A low vibration level, rubberized handle, electronic speed control should be entered into the asset of the tool. When the rig is jammed, the power is turned off in a split second. The side handle helps control the behavior of the 10.6 kg rock drill.
Professional builders note the high power of the device, versatility of use, and electronic overload protection. Of the minuses, one can single out large overall dimensions.
Advantages
- high power;
- low vibration;
- comfortable grip;
- overload protection.
disadvantages
- bulkiness.
Makita HR5001C
Rating: 4.4
The Makita HR5001C hammer drill is very popular among domestic consumers. Experts attribute this fact to the optimal combination of price and durability. The model is inferior to the leaders of the review in power (1500 W), impact energy (17.5 J). In concrete, the tool is capable of making a hole with a drill up to 50 mm in diameter. But thanks to high-quality workmanship, the tool is able to work for a long time without heating up. The hammer drill is well equipped, it has a reverse, a carbon brush wear indicator, and a spindle fixation. The device comes with a drilling depth limiter, an additional handle, and a lubricant pack. The model closes the TOP-6 of the most powerful rock drills.
Russian builders praise the Japanese rock drill for high-quality assembly, durability, and affordable price. They consider a bulky case to be a minus.
Advantages
- durability;
- Japanese quality;
- good equipment;
- adequate price.
disadvantages
- large dimensions of the case.
Attention! This rating is subjective and does not constitute an advertisement and does not serve as a purchase guide. Before buying, you need to consult with a specialist.
