The Makita 18v lxt lithium ion brushless cordless high torque 1/2 inch sq. Drive impact wrench (xwt08z, tool only) combines 740 ft. lbs. Fastening torque and 1180 ft.lbs. Break away torque with extended run time and speed control for unmatched fastening performance. It features an efficient Makita brushless motor for longer run time, increased power and speed and longer tool life. The electronic 3-speed power selection switch gives users more precise fastening control. It is ideal for a range of users, from iron and steel workers to pipe fitters, railroad and automotive mechanics, forming carpenters and more.