The NAPA 6-231 Air Impact 1/2" Wrench is a professional-grade impact wrench designed for automotive use. With a maximum torque output of 600ft/lbs, this single item tool features a 1/2" drive size for high performance. The 1/4" air inlet size ensures efficient operation, making it a reliable choice for mechanics and automotive professionals seeking a durable and powerful impact wrench for their work.