Advantages Top performance with 20% less vibration ? High drilling rate and 20% higher chiselling power than other rotary hammers in its class ? 20% less vibration than other hammers in its class for more comfortable working due to Bosch Vibration Control ? Quick change chuck for fast changes between drilling with impact in concrete and drilling without impact in wood and metal Rated input power* 800 W Impact energy* 3.1 J Impact rate at rated speed 0 ? 4,000 bpm Rated speed 0 ? 900 rpm Weight 3.6 kg Tool dimensions (length) 354 mm Tool dimensions (height) 233 mm Tool holder SDS plus Drilling range Drilling dia. concrete, hammer drill bits* 4 ? 28 mm Opt. appl. range concrete, hammer drill bits 12 ? 18 mm Drilling diameter in concrete with core cutters 68 mm Max. drilling diameter masonry, core cutters 82 mm Max. drilling diameter in metal 13 mm Max. drilling diameter in wood 30 mm Total vibration values (Hammer drilling in concrete) Vibration emission value ah 13 m/s? Uncertainty K 2 m/s? Total vibration values (Chiselling) Vibration emission value ah 9.5 m/s? Uncertainty K 1.5 m/s?