Air chisel hammer air chisel hammer set air consumption 110 lmin chisel stroke 41 mm operating pressure 6 bar contents chisel hammerclamping springoil bottleplug in nipple for air supply5 part chisel set series einhell dmh blow rate 4 500 bpm power supply compressed air operation gear 1 speed weight 27 kg air consumption 115 l min air pressure 6 3 bar