Bosch GBH 12-52 D SDS-Max Professional Rotary Hammer with a robust motor to deliver 3.2 J of impact energy for high-power drilling performance. The rotary hammer also features reverse mode, rotation control clutch, variable speed, and Vario-Lock. For added user protection there is KickBack Control and Vibration Control. This tool is intended for drilling and chiselling in concrete, masonry, wood, and metal. It is 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. Specifications: Tool Holder: SDS-Max. Input Power: 1, 700W. Impact Rate: 0-4, 000/bpm. Impact Energy: 3.2 Joules. Drilling Diameter: Concrete, Hammer Drill Bits 4-28mm, Opt. Appl. Range Concrete, Hammer Drill Bits 8-16mm, Concrete with Core Cutters 68mm, Metal 13mm, Wood 30mm. Weight: 2.9kg.