Wera 8790 Wheel Impaktor C Set 1 Socket Set 3 Piece 1/2" Drive 05004595001Three " Impaktor socket wrench plug ins, for use with impact wrenches; with rotating smooth plastic sleeve for higher working speed and additional rim protection. Internal plastic insert to protect the wheel bolt surface. For use with electric or pneumatic impact wrenches with 12. 5mm = " drive Robust impaktor design for extremely high stress Smooth outer plastic sleeve to protect the rim when changing wheels Internal plastic insert to protect the