Impact stop for drilling in wood and steel; Ball grommet to prevent cable breaks; Soft grip on main and auxiliary handles; Overload clutch. Range of Drilling: Drilling diameter concrete, Hammer drill bits 4 - 26 mm; alternative application range concrete, Hammer drill bits 8 - 16 mm; maximum drilling diameter masonry, core cutters 68 mm; maximum drilling diameter steel 13 mm; maximum drilling diameter wood 30 mm Concrete drilling with a Hammer; Uncertainty K: 1.5 m or s2. Vibration emission value ah 15 m or s2. Uncertainty K: 1.5 m or s2 for chiselling vibration emission value ah 14 m or s2.