Square drive: 1/2", No-load speed:0-1600/0-1900/02300rpm.
Impact rate: 0-2100/0-2500/0-2900bpm.
Fastening torque:400Nm.
Nut-busting torque: 550Nm.
Integrated LED work light.
Includes: 2 pcs 2.0Ah battery, 1 pcs charger 20V.
                    Sockets -17,19,21 mm.