HM0871CHigh performance, ergonomically designed handle with easy-to-operate slide switch. Electronic with variable speed control by dial. LED service light that indicates when to replace carbon brush. LED power light that indicates trouble with the electric circuit. Constant speed control. One touch sliding chuck for easy bit changes. Vibration absorbing handle. Continuous rating input: 1,100W.Max. joules: 11.6J. Blows per minute: 1,100 - 2,650bpm. Overall length: 466mm. Power supply cord: 5.0m. Supplied with: side handle (bar shaped) (135332-7) bit grease (194659-4), and carry case.