Features:Material: premium chrome vanadium steel,Drop forged, entirely hardened and tempered,Advantages:,Ratchet: works both way, screw direction can be changed with button,72 - teeth, 5° working angle,Stop ring on the ring part of the wrench prevents unexpected slip of the wrench from the nut and positioning back on the nut.,It enables quick and easy tightening of the nut without causing damage to the user and quick, save and precise positioning of the wrench on the nut..