General description The Bosch GBH 12-52 D SDS-Max Professional Rotary Hammer is designed for high-power drilling performance with a robust motor delivering 3.2 J of impact energy. It features a reverse mode, rotation control clutch, variable speed, and Vario-Lock for enhanced versatility. For user safety, it includes KickBack Control and Vibration Control, making it suitable for drilling and chiselling in concrete, masonry, wood, and metal. Technical specifications Input Power: 1,700W Impact Rate: 0-4,000 bpm Impact Energy: 3.2 Joules Weight: 2.9 kg Tool Holder: SDS-Max Drilling Diameter: Concrete, Hammer Drill Bits 4-28mm (Opt.), Hammer Drill Bits 8-16mm, Concrete with Core Cutters 68mm, Metal 13mm, Wood 30mm Compatibility and accessories Compatible with various dust attachments Supplied with: 1 x Auxiliary Handle, 1 x Depth Stop 210mm, 1 x Machine Cloth, 1 x L-BOXX Inlay, and 1 x L-BOXX 136