DEWALT | Chipping Hammer- SDS Max 5Kg | D25810K-B5Tool Holder : SDS Max Power Input : 1150 Watts Power Output : 500 Watt Impact energy (EPTA 05 2009) : 8 J Blows per Minute : 2740 bpm Weight : 5. 8 kg Length : 457 mm Height : 245 mm Width : 104 mm Hand Arm Vibration " Chiselling : 13. 2 m s 2 Uncertainty K 2 (Vibration) : 1. 6 m s 2 Sound Pressure : 94 dB(A) Sound Pressure Uncertainty : 3 dB(A) Sound Power : 104 dB(A) Sound Power Uncertainty : 3 dB(A) The D25810K 12 lb. SDS Max Demolition Hammer is