DeWalt DCF922P2T 18V 5.0AH Li-ion Brushless Double Battery Nut Tightening Battery Voltage:18V Battery Type: Li-ion Battery Capacity: 5.0 Ah Maximum Torque: 406Nm Tip Holder: 1/2" No Load Speed: 0-2500rpm.

Weight: 1.1kg Length*Height: 125mmx210mm Maximum Nut Diameter: M20 Impact Rate: 0-3550 dar/min.