Brushless motor Voltage:20V Square drive:1/2" No-load speed: 0-1600/0-2100/0-2400rpm Impact rate: 0-1500/0-1800/0-2200bpm Fastening torque:850Nm Nut-Busting torque:1000Nm Integrated LED work light Include: 3 Pcs deep sockets(22,24,27mm) 1 Pcs belt clip 2 Pcs 4.0Ah battery pack(FBLI20021) 1 Pcs charger(FCLI20411) Charge volts:220-240V~50/60Hz Packed by carrying case