Bosch GBH 4-32 DFR Professional Rotary Hammer, 900 W, 4.2 J, SDS Plus, 32 mm, Black/Blue/Grey

The Bosch GBH 4-32 DFR Professional Rotary Hammer is a corded AC tool designed for heavy-duty hammer drilling and chiselling. Its 900 W motor delivers up to 4.2 J of impact energy for efficient material removal in concrete, stone, wood, and metal. A selector switch lets operators move directly between rotary drilling, hammer drilling, and chiselling. At 4,700 g, the main body has enough mass to drive bits effectively into dense masonry. No drill bits are supplied, so users can fit the machine to the job using their own accessories.

An SDS Plus chuck holds bits securely and allows quick, keyless changes. Adjustable speed control and a reverse function make it easier to back out jammed bits. A textured soft-grip surface and a fully adjustable auxiliary handle improve stability during prolonged use. Built-in overload protection prevents damage to the internal electrical components when the bit binds hard. For storage and transport between sites, the tool comes in a rigid carrying case.

• Maximum concrete drilling capacity of 32 mm, with an optimum performance range of 14 to 25 mm.
• Chuck capacity adjusts from 1 mm to 90 mm to accommodate standard bits and wide core cutters.
• Impact rate of up to 3,600 bpm for fast breaking of hard masonry and stone.
• No-load speed of up to 800 rpm for consistent boring across different materials.
• Up to 32 mm in timber and 13 mm in steel when drilling without hammer action.
• Chiselling vibration level of 11.4 m/s² for calculating safe operator exposure times.