Perforator Bosch GBH 18V-40 C PROFESSIONAL

The Bosch GBH 18V-40 C PROFESSIONAL is an SDS Max cordless rotary hammer designed for heavy-duty drilling and chiselling in concrete and masonry. Equipped with a brushless motor and delivering 9 J of impact energy, this model provides the necessary performance for demanding jobs while operating from an 18 V battery platform. It supports a maximum drilling diameter of 40 mm in concrete and runs at a rated speed of 360 RPM. The tool combines high impact force with a compact, lightweight design of approximately 7 kg and comes with two batteries for extended runtime.

Advantages

The brushless motor increases efficiency and reduces maintenance compared with brushed alternatives, while the 9 J impact energy enables faster progress in hard materials. Battery operation provides site mobility without the need for a mains connection, and two included batteries reduce downtime. The SDS Max interface ensures secure bit retention and easy bit changes. The compact dimensions and 7 kg weight improve manoeuvrability during overhead or confined-space work.

Suitable for

• Drilling large-diameter holes in concrete and masonry (up to 40 mm)
• Heavy chiselling and demolition tasks on construction sites
• Installation of anchors and fastenings in structural work
• Work on sites without reliable mains power where cordless operation is required

Key specifications

• Tool type: Cordless rotary hammer (SDS Max)
• Impact energy: 9 joules
• Maximum drilling diameter in concrete: 40 mm
• Rated speed: 360 RPM
• Power source: 18 V battery
• Battery capacity supplied: 5.5 Ah (each)
• Weight: approx. 7 kg
• Colour: Black, Blue, Red

How to use

Fit an SDS Max bit suitable for the task, ensure the battery is fully charged and inserted, and select the appropriate operating mode if the tool has multiple functions. Hold the tool with both hands, align the bit with the intended drilling point, and start at low speed to position the bit securely before increasing to working speed. Apply steady pressure without forcing the tool; allow the impact energy to do the cutting. For chiselling, use controlled, guided movements and change to a chisel bit as required. After use, remove the battery and store the tool and batteries in a dry, ventilated place.

Usage recommendations

Use appropriate personal protective equipment (safety glasses, ear protection, dust mask and gloves) and, when drilling in masonry or concrete, consider dust extraction or wet drilling methods to reduce airborne dust. For prolonged heavy-duty use, rotate batteries to maintain consistent performance and allow cells to cool between cycles.