Jack Hammer, demolition hammer 1) Work: 25J 2) Rated input power: 950W 3) Max Impact Rate: 2900BPM 4) NW: 6.5KG Jack HammerHM0817Rated Input Power 950WMax Impact Rate 2900BPMRated Frequency 50/60HzRated Voltage 220V/110VPCS/CTN 3PCSNet Weight:6.5KGS HM0817 portable electric jack hammer