electrical wrench Carton size : 54X29x27cmEach carton : 6 SETSN.W. 1.6KgOutput square shaft : 1/2(13mm)Max torque 400N.mNo-load speed 4800rpmOperating voltage 12V DCCurrent 8AAccessories 2 SOCKETS17-19mm,21-23mm)Package : Blow mold case with color boxQty of 20 cont : 3990pcsCertification: CE,GS,EMC impact wrench