Bosch demolition hammer GSH 18V-5 18V, impact energy 5 J, cordless

The Bosch demolition hammer GSH 18V-5 is a cordless 18V tool engineered for light to medium demolition and chiselling jobs. With an impact energy of 5 J, this battery-powered demolition hammer delivers percussive force sufficient for removing tiles, breaking small areas of concrete, chipping mortar and performing repair work in areas without direct access to mains power. The compact, cordless design supports mobility on renovation sites and in tight spaces while remaining compatible with standard Bosch SDS-plus chisels and accessories.

Advantages

The tool combines the portability of an 18V cordless system with a rated impact energy of 5 J, offering a balance between power and maneuverability. Its battery operation removes the need for extension cables and simplifies use in locations with limited electrical access. Compatibility with Bosch chisels and accessories increases versatility for different demolition and chiselling tasks. The design emphasises ergonomic handling for sustained use during renovation and repair work.

Suitable for

• Tile removal and adhesive stripping in renovation projects
• Small to medium concrete chipping and repair work
• Removing mortar and pointwork between bricks or blocks
• On-site maintenance where mains power is unavailable or impractical

Key specifications

• Power supply type: cordless 18V battery system
• Impact energy: 5 J (joules)
• Tool holder type: SDS-plus compatible for chisels and bits
• Intended use: light to medium demolition, chiselling and repair
• Design features: compact, portable construction for site mobility

How to use

Fit a compatible SDS-plus chisel or bit into the tool holder according to the manufacturer's instructions and ensure the battery pack is correctly seated and charged. Select the appropriate chisel geometry for the task — wide flat chisels for tile and adhesive removal, pointed or narrow chisels for breakout and detail work. Operate the demolition hammer with a firm two-handed grip, start at low impact points if precision is required, and apply steady pressure while allowing the tool's percussive action to do the work. Periodically inspect the chisel for wear and replace or rotate as needed to maintain effective impact performance.

Recommendations

For safe and effective operation, use Bosch-approved batteries and accessories, wear appropriate personal protective equipment including eye and hearing protection, and follow local safety regulations. When working on reinforced concrete or very large demolition tasks, consider a higher-capacity mains-powered demolition hammer. Regularly check fastenings and the condition of the tool after heavy use to ensure continued reliable performance.