First,its 350N. m torque & two 4.0Ah batteries included greatly enhance the value of this impact wrench set. 3/8" Cordless Impact Wrench, Power Impact Gun w/Max Torque 330Ft-lbs(450N. Compared with other 2.0Ah battery, it can enjoy more than 50% of the battery life and keep the wrench running continuously. ).
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