The hitachi wr18dshl is a high power impact wrench which uses high capacity 40ah li ion batteries offering up to 33 more runtime compared to 30ah batteries it has a multiplex protection circuit to maximise battery life the wr18dshl produces a powerful tightening torque of 480nm and has a forward reverse rocker switch battery level indicator and a white led spotlight to illuminate the workpiece for better visibility it has external brush caps and its slimline soft grip handle enhances user comfor