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Bosch GBH Professional Rotary Hammers

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The Bosch GBH Professional Rotary Hammers are available in nine models: GBH 2-24 DRE (2.7 J, 2.8kg, 930 rpm, 4,200 bpm), GBH 2-24 DFR (similar to DRE with quick-change chuck), GBH 2-26 F (2.7-3.0 J, 900-930 rpm, 4,000-4,350 bpm, quick-change chuck), GBH 2-28 F (3.2 J, KickBack Control, Vibration Control), GBH 4-32 DFR (4.2 J, 900W, robust metal gearbox), GBH 5-40 D (8.5 J, SDS-max, entry-level), GBH 8-45 DV (12.5 J, SDS-max, Vibration Control), and GBH 12-52 DV (19 J, SDS-max, heavy-duty). Features vary by model but may include Vario-Lock, Rotation Control Clutch, Reverse Mode, Variable Speed, and Vibration Control. Suitable for electricians, plumbers, construction professionals, and civil engineers.
Description

Table of Contents

Bosch GBH Professional Rotary Hammers

PRIMARY USES

1. Heavy-Duty Drilling and Chiselling for Professional Construction
Primary Use: A comprehensive range of professional corded rotary hammers (available in SDS-plus and SDS-max tool holder variants) used for drilling, hammer drilling, and chiselling in concrete, masonry, stone, wood, and metal. Essential for electricians, plumbers, construction professionals, and civil engineers requiring high-performance drilling and demolition tools for daily construction and renovation work.
How it helps: For construction professionals, the GBH series delivers powerful performance across a wide range of applications. The SDS-plus models (2-24 DRE, 2-24 DFR, 2-26 F, 2-28 F, 4-32 DFR) are designed for light to heavy-duty drilling and chiselling with drilling diameters up to 32mm and chisel removal rates up to 4.2 J impact energy. The SDS-max models (5-40 D, 8-45 DV, 12-52 DV) are built for heavy to extreme-duty applications with drilling diameters up to 52mm and impact energies up to 19 J for the most demanding demolition tasks. Features such as Vario-Lock, Vibration Control, and KickBack Control ensure safety and comfort during extended use.
2. Three Operating Modes for Maximum Versatility
Primary Use: Most models feature three operating modes for drilling, hammer drilling, and chiselling, allowing users to tackle a wide range of applications with a single tool.
How it helps: The rotary selector switch allows easy switching between functions. The hammer drilling mode delivers fast progress in concrete with SDS-plus or SDS-max bits. The chiselling mode enables light to heavy chiselling tasks such as chasing, tile removal, and demolition. The drilling mode with rotation only allows for drilling into wood and steel using the quick-change chuck (where included).

Bosch GBH Professional Rotary Hammers Amaris Hardware Solutions

SECONDARY USES

1. Core Cutting: Capable of drilling up to 68mm diameter with core cutters in masonry (2-28 F and above).
2. Drilling in Wood: Drills into wood up to 30-50mm diameter using the quick-change chuck.
3. Drilling in Steel: Drills into metal up to 13-16mm diameter.
4. Heavy Chiselling: Suitable for heavy chiselling tasks such as demolition, chasing, and breaking in concrete and stone (SDS-max models).
5. Scabbling: Surface preparation and roughening of concrete surfaces.
About brand
**Bosch** is a leading German brand founded in **1886**, renowned for its high-quality, innovative, and reliable engineering solutions. In the hardware industry, Bosch is best known for its durable power tools, measuring equipment, and accessories, trusted by professionals and DIY users worldwide. With a strong focus on performance, precision, and innovation, Bosch continues to set the standard for quality in construction, manufacturing, and home improvement.
KEY PRODUCT FEATURES

1. BASIC IDENTIFICATION ATTRIBUTES

  • Device Type: Rotary hammer; not a medical device.
  • Designation: Bosch GBH Professional Series
  • Tool Holder: SDS-plus (2-24 DRE, 2-24 DFR, 2-26 F, 2-28 F, 4-32 DFR) / SDS-max (5-40 D, 8-45 DV, 12-52 DV)
  • Country of Origin: China / Germany (varies by model)
MODEL SPECIFICATIONS
Model
Order Number
Power
Impact Energy
Speed
Impact Rate
Weight
Tool Holder
GBH 2-24 DRE
0.611.272.1K0
790W
2.7 J
0-930 rpm
0-4,200 bpm
2.8 kg
SDS-plus
GBH 2-24 DFR
0.611.273.0K0
790W
2.7 J
0-930 rpm
0-4,200 bpm
2.8 kg
SDS-plus
GBH 2-26 F
0.611.2A4.070
830W
2.7-3.0 J
0-900 rpm
0-4,350 bpm
2.8-3.0 kg
SDS-plus
GBH 2-28 F
0.611.267.6P0
880W
3.2 J
0-900 rpm
0-4,000 bpm
3.1 kg
SDS-plus
GBH 4-32 DFR
0.611.332.100
900W
4.2 J
(variable)
0-3,600 bpm
4.4-4.8 kg
SDS-plus
GBH 5-40 D
0.611.269.000
(not specified)
8.5 J
170-340 rpm
1,500-2,900 bpm
(not specified)
SDS-max
GBH 8-45 DV
0.611.265.060
(not specified)
12.5 J
165-300 rpm
1,475-2,700 bpm
(not specified)
SDS-max
GBH 12-52 DV
0.611.266.000
(not specified)
19 J
105-215 rpm
1,025-2,100 bpm
(not specified)
SDS-max

2. TECHNICAL & PERFORMANCE PROPERTIES

  • Primary Action: Rotational drilling with impact function and chiselling via pneumatic impact mechanism.
  • Drilling Capacities (Model Dependent):
    • Concrete (SDS-plus models): 4-20mm (optimal), up to 32mm (max)
    • Concrete (SDS-max models): Up to 40-52mm
    • Steel: 13-16mm
    • Wood: 30-50mm
    • Core Cutter (Masonry): Up to 68mm (2-28 F and above)

3. PHYSICAL & OPERATIONAL PROPERTIES

  • Preparation: Insert the SDS-plus or SDS-max bit into the tool holder until it locks. Ensure the bit is securely seated. For wood and metal, use the quick-change chuck (where included).
  • Usage Instructions: Select the appropriate mode using the rotary selector switch. Adjust speed with the variable speed trigger. For drilling concrete, use the hammer drilling mode. For wood and metal, use the drilling mode. For chiselling, use the chiselling mode and adjust the Vario-Lock to set the chisel position.
  • Vario-Lock: Allows 12-position chisel adjustment for optimal working angle.
  • KickBack Control: Available on select models (2-28 F, 2-26 F Gen II) for increased user protection.
  • Vibration Control: Available on select models for effortless and continuous work in time-intensive applications.

4. SAFETY & COMPLIANCE ATTRIBUTES

  • Safety Classification: Power tool; risk of injury from rotating parts, impact mechanism, and flying debris. Eye protection, hearing protection, and protective gloves required.
  • Safety Features: Rotation Control Clutch (Anti-Rotation), Overload Clutch, Restart Protection (select models), KickBack Control (select models).
  • Dust Extraction: Compatible with various dust attachments for cleaner workspaces.
SAFETY HANDLING PRECAUTIONS

1. SAFETY PRECAUTIONS

Personal Protective Equipment (PPE): Always wear safety goggles, hearing protection, and heavy-duty gloves. Use respiratory protection when drilling in materials that generate dust (silica from concrete and masonry).
Electrical Safety: Check power cord for damage before use. Do not operate in wet conditions. Hold power tool by insulated gripping surfaces when drilling where hidden wiring may be contacted.
Dust Hazard: Drilling in concrete and masonry generates silica dust. Use appropriate respiratory protection (at least P2 or N95 mask) and dust extraction where possible.
Kickback Hazard: Maintain a firm grip and proper stance. Be prepared for sudden reactions if the bit jams. The Rotation Control Clutch provides additional user protection.
Maintenance: Unplug tool before changing bits or performing maintenance. Allow the tool to cool before storing.

2. FIRST AID MEASURES

Eye Injury (debris): Do not rub. Rinse immediately with plenty of clean water for at least 15 minutes, holding eyelids open. Seek medical attention.
Cut Injury: Apply direct pressure to stop bleeding. Clean wound with clean water. Cover with sterile dressing. Seek medical attention if bleeding is profuse or the wound is deep.
Skin Contact (dust): Wash skin with soap and water. If irritation develops, seek medical attention.
Inhalation of Dust: Move a person to fresh air. If symptoms persist (coughing, difficulty breathing), seek medical attention.

3. FIRE FIGHTING MEASURES

Flammability: The tool is not flammable, but plastic casing may burn if exposed to fire. Dust accumulation at the workplace can ignite.
Extinguishing Media: Use water spray, foam, dry chemical powder, or carbon dioxide (CO₂) for fires involving tools.
Fire Response: In event of fire, evacuate the area and call emergency services. Use appropriate extinguishers; water may be used for general fires but not for electrical fires where live equipment is involved.