1, Specifications Output Square Shaft: 1/2＂(13mm) Max Torque : 400N.m/285Ft.lb No-Load Speed :4800rpm Operating Voltage: 12V DC Net Weight :1.6Kg/3.5lb Individual packing weight :2.45Kg/5.38lb 2,  Accessories: 2pcs Socket(Chrome-Vanadium)): 11/16-3/4＂(17-19mm) 13/16-7/8＂(21-23mm)  2pcs Fuse 3, Special Features: 1.Patent design generating powerful torque than ever 2.Internal clutch automatically engaged to protect from recoil on the motor and insure the long-term use 3.Low current & built-in fuse to protect from damage 4.With LED light to illuminate dark place 5, Package: Blow mold case with color box Meas: 54×29×27cm Q' ty /CTN: 6sets     N.W./G.W..: 15.5-16.5Kg Qty of 20＇cont : 665CTN(3990pcs ) Qty of 40＇ cont : 1618CTN(9708pcs 6, Certificate: CE, GS