Brushless motor; maximum run time. 3-speed design; application specific control. Push-button chuck; 1-handed operation for accessory changes. Compact (5.25" front to back) design fits into tight areas. (3) LED (light emitting diode) lights around the chuck with 20 second delay after trigger release; provides visibility with limited shadows. Belt hook and accessory storage; included for portability. 2850/1900/950 rpm (revolutions per minute). Max torque 1500/900/500 in/lb (inch/pound). Battery and charger not included.