Bosch 11253VSR BULLDOG Xtreme 1-Inch SDS-plus Pistol-Grip Rotary Hammer Up to 7.2-Amps Has 2.2-feet-per-pound of impact energy Length is 17.25-inches No load BPM ranges from 0 to 5,800 No load RPM ranges from 0 to 1,300 7.2 Amps 2.2-Feet-Pound of Impact Energy Length: 17.25-Inch 0 - 5,800 No Load BPM 0 - 1,300 No Load RPM