Draper expert 3 4 sq dr composite body air impact wrench draper expert 48413 b i expert quality i b lower noise low vibration high torque twin hammer action with easy forward and reverse one hand operation low noise and vibration with rotating air inlet to prevent air lines tangling the composite body makes this a lightweight but rugged tool that reduces operator fatigue and the cold sink effect ergonomic handle design for user comfort display carton draper expert 3 4 sq dr