Boorhamer Bosch GBH 2-28 Professional

The Bosch GBH 2-28 Professional is a corded rotary hammer designed for medium-duty drilling and chiselling tasks. Powered by an 880 W motor and capable of reaching up to 4000 RPM, this perforator combines impact energy of 3.2 J with an SDS Plus chuck for rapid bit changes. It drills up to 68 mm in concrete while weighing approximately 2.9 kg, offering a balance of performance and maneuverability for trade and renovation work. The tool comes with a 4 m power cord to extend working reach without frequent repositioning of power sources.

Advantages

The unit delivers consistent drilling and chiselling performance thanks to its high motor power and defined impact energy. The SDS Plus chuck enables fast, tool-free bit replacement and reliable bit retention during heavy use. At around 2.9 kg the perforator is comparatively lightweight for its class, reducing operator fatigue during extended use. The 4 m cord increases mobility on-site and supports uninterrupted work in confined or open spaces. The tool's housing and colour scheme follow Bosch Professional design standards for easy identification in a busy workshop.

Suitable for

• Drilling holes in concrete, masonry and stone up to 68 mm depth
• Installing anchors and dowels in structural and finishing work
• Light chiselling and removal of tiles or plaster
• General renovation, electrical and plumbing installations

Key specifications

• Motor power: 880 W
• Maximum no-load speed: up to 4000 RPM
• Impact energy: 3.2 J
• Chuck system: SDS Plus
• Maximum drilling depth in concrete: 68 mm
• Weight: approx. 2.9 kg
• Cord length: 4 m
• Colour: blue and black

How to use

Select the appropriate SDS Plus drill or chisel bit for your application and insert it into the chuck until it locks. Secure the workpiece or mark the drilling point, fit any required depth stop, and set the tool to the correct operating mode (drilling with impact or chiselling) according to the task. Hold the perforator with both hands, apply steady pressure without forcing the tool, and start drilling at low speed to establish the hole before increasing to the required speed. For chiselling, use controlled short contact strokes and allow the tool to deliver the impact energy without excessive downward force.

Recommendations

Use appropriate personal protective equipment including eye protection, hearing protection and dust mask when working with concrete or masonry. Inspect drill bits for wear and replace as needed. For continuous heavy-duty tasks, allow periodic pauses to prevent overheating and follow manufacturer maintenance guidance for carbon brushes and ventilation openings.