The Bosch rotary hammer at the service of the hobbyist and professional
If you are a master, you know that a good tool does wonders. The blue BOSH hammer drill will become a reliable continuation of your hands during home repairs or in professional work. Green punchers are of a lower class, and their price is more democratic, but with an occasional load they will serve for a long time. There is no more reliable and functional tool in the range of rotary hammers than Bosh products.
Rotary hammer parameters and abbreviation explanation
The hammer drill is selected according to the nature of the work performed. Therefore, all units are subdivided into classes:
Lightweight Bosch rotary hammers weigh up to 3 kg and are designed to create small holes with hammer drilling, hammer drilling and even single drilling. Tools weighing up to 5 kg belong to the middle class, they work on heavy grades of concrete and reinforced concrete.
Household models include light hammer drills with a power of 0.5 kW and performing light construction work associated with drilling holes without destroying walls and ceilings. Rotation speeds of 2000-2800 rpm and 5800 strokes allow making holes in structures up to 20 mm in diameter.
An amateur tool of medium power includes perforators Bosch 2400, 2600, 2800. They have a motor of 0.72 kW, a strong impact – 2.6 J, which allows you to perform even work related to the destruction of non-load-bearing concrete walls.
The products of the concern have a marking that is understandable to the educated. Let’s figure it out on the example of a puncher, how, without looking at the passport, to determine the main functions of the Bosch puncher.
Painting the brand green indicates that you are considering a household appliance. Blue is a call to pay attention to a professional. The first letter “G” means that the model is professional, “P” – amateur. “BH” is a sign that we are dealing with a hammer drill, not a drill or screwdriver. It is for a professional tool that the following figure means its weight. A dash indicates the maximum section of a hole in concrete that can be made with this model. Further letters indicate which functions are inherent in this tool model:
- C – constant power at varying load;
- E – regulation of the rotation speed;
- D – rotation blocking;
- F- keyless chuck SDS plus included;
- R – reverse motion;
- A – dust removal system.
According to the new marking, the letters E, R are removed from the marking, since the functions designated by them have become standard for all Bosch rotary hammers..
Perforator BBosch GBH 2-26 DRE
Bosch hammer drill, professional, lightweight with a function of speed regulation and blocking – this is how the tool presented for consideration stands. It is reliable and, according to reviews, has been in professional use since 2007 without repair. Functions and Specifications:
- power – 800 W;
- impact force – 2.7 J;
- frequency – 4000 bpm;
- rotation speed – 900 rpm;
- weight – 2.7 kg;
- depth stop;
- reverse mode;
- special SDS plus cartridge;
- safety clutch against impact.
The Bosch GBH 2-26 DRE hammer drill is made of plastic, handles with rubber pads. The tool supports 3 functions. In reserve there is a mode for turning nozzles such as lances and chisels, but it is used occasionally. It works stably. Additional convenience – 5 meter cord allows free movement.
The disadvantage is the plastic case, which is covered with scratches from the first days of operation. Technological flaw – with a long drill, a backlash appears in the chuck, a note from several users.
Professional lightweight puncher Bosch
The Bosch GBH 2-24 D hammer drill is a high-class tool. It has a high energy of destruction and three modes of operation. The presence of the reverse function allows the use of a hammer drill for screwing in fasteners. When drilling holes in structures, a depth gauge is used.
The rotational speed of the drill is regulated by the force of pressing the trigger. The flat chisel is set at different angles of the cutting surface due to its special function. The reverse stroke is switched on through the brush holder. To replace the equipment, the Bosch GBH 2-24 D rotary hammer is equipped with an SDS plus chuck. Forced air ventilation protects the motor from overheating. Vibration protection is provided by an elastic rubber handle, which is comfortable to grip. There is a safety clutch, protection in case of jamming or breakage of the drill. To prevent the power cord from working on a kink, a swivel mount is used.
When purchasing green equipment from the Bosch company, you need to remember about the gentle operating conditions. Initially, professional models are equipped with more reliable parts. Even amateur models have less cord length.
Sophisticated equipment and protection systems extend the service life of the tool. The manufacturer, counting on competent operation, calls a maintenance-free service life, sufficient to create 75,000 holes. The instrument performed well in percussion mode. And turning the brushes when changing the direction of rotation allows the reverse to be carried out at the same speed as the forward stroke.
The main characteristics of the hammer drill:
- power – 790 W;
- impact force – 2.7 J;
- impact frequency – up to 4700;
- speed – up to 1300;
- maximum drilling diameter – concrete 24 mm, steel 13 mm;
- weight – 2.8 kg.
The price of a Bosch perforator of this model is on average about 8 thousand rubles, which is not expensive for a high quality tool.
Basic information about the Bosch rotary hammer GBH 2-26 DFR professional
The use of this model of rock drills as a universal tool for working with hard building materials is justified. Three operating modes make the tool universal for working with ceramics, bricks, concrete. He can not only create structures, but also destroy them..
The Bosch GBH 2-26 DFR professional rotary hammer warns in advance about its special purpose. The kit includes an additional cartridge for the installed SDS+.
The features and functions of the device are impressive:
- The operating mode switch has a button for fixing the selected parameter.
- To use the shockless mode of work with tools without shanks, use the keyless chuck, which is included in the kit.
- Percussion drilling is carried out only on a chuck adapted for fixing liners.
The hammer drill works for a long time in dusty conditions due to the special design of the engine cooling. After reading the numerous reviews, it becomes clear that the devices with an unknown country by the manufacturer do not work well. The model is on stream in Germany.
Rotary hammer Bosch GBH 2-28 DFV
The most equipped with various innovations, the Bosch GBH 2-28 DFV rotary hammer is distinguished by its thoughtful design from the case to the power cord. It combines a wrench, impact drill and hammer drill. Only performs these functions with greater strength and intensity.
The model with an 850 W motor weighs 3.1 kg, that is, it belongs to the middle class in terms of weight. The developed blow acts on an object with a destructive force of 3.2 J. The worker has a vibration damping system, and it is reduced by 25% compared to other models of this class. The power cable is hinged and does not break. A well-thought-out system for regulating the speed of rotation and impacts allows you to adjust the pace of work to the nature of the material.
The powerful device also pleases with the results:
- the use of hollow crowns for concrete makes it possible to obtain a through hole with a cross section of 68 mm;
- drill penetration allowed 28 mm.
The hammer drill is equipped with an additional handle, a replaceable chuck, and a drilling depth limiter. The price of a Bosch perforator of this brand is on average 13 thousand rubles.
Amateur models of perforators BOSCH
The Bosch PBH 2800 RE hammer drill belongs to the amateur sector of tools for carrying out construction reconstruction. The universal use of a hammer drill as a mixer, screwdriver and slotter is possible due to its wide functionality. With one tool, changing the attachments, you can work with any building materials. Supplied with extra handle, chisel, depth gauge and carrying case.
Do not start work without first reading the operating instructions for the Bosch PBH 2800 RE rotary hammer. The tool requires respect.
- network load – 720 W;
- impact force – 2.6 J;
- section of holes – concrete up to 26 mm, metal up to 13 mm, wood up to 30 mm;
- cartridge – SDS plus.
The device provides for the regulation of the rotation speed and the frequency of blows of the drill or drill. The ability to switch to reverse mode will help unscrew a stuck drill or screw. The presence of a depth gauge will not allow drilling to neighbors through the wall. Locking the start button of the punch will allow you to have freedom of movement.
The Bosch PBH 2100 RE hammer drill for domestic use is a lightweight tool with one rotation and chiseling speed. It does not have a strong impact, only 1.7 J, but the frequency of 5800 bpm will destroy any material. The rotational speed of the 2300 is also impressive. The perforator does all the work that the more powerful brothers do, only the cross-section of the holes is slightly smaller, due to insufficient power. It draws 550W and weighs 2.2kg.
It should be especially noted that the price of the Bosch Punch does not exceed 5 thousand rubles.
Spare parts for Bosch rotary hammers
Over the years, equipment operating in harsh conditions deteriorates. Consumables are required – bits, drills, carbon brushes. The Bush company has an extensive network of service centers and it will not be difficult to repair a hammer drill. You can buy spare parts both in online stores and on sites where the manufacturer’s tools are sold.