OpenClose GSH 500 PROFESSIONAL DEMOLITION HAMMER WITH SDS MAX Fast & Reliable - The NEW Chipping Specialist! Great efficiency: High impact energy coupled with superior impact rate resulting in high chipping output Extended durability: Grease sealing ring to prevent leakage coupled with dust cap solution for better dust proof resulting long life time Ergonomic design: One hand Vario Lock design for 12 position chisel bit change, lock-on button for daily continuous work Additional data Rated input power 1,100 W Impact energy 7.8 J Tool dimensions (length) 460 mm Tool holder SDS max Impact rate at rated speed 2,900 bpm Weight 5.7 kg Tool dimensions (width) 103 mm Tool dimensions (height) 235 mm.