Features and Benefits: BL? Brushless Motor delivers 590 ft.lbs. of fastening torque;3-speed power selection switch (0-900/ 0-1,000/ 0-1,800 RPM 0-1,800/ 0-2,000/ 0-2,200 IPM) provides precise fastening control for a wide range of applications;The BL? Brushless Motor eliminates carbon brushes, enabling the BL Motor to run cooler and more efficiently for longer life;Efficient BL? Brushless motor is electronically controlled to optimize battery energy use for up to 50% longer run time per charge;The electronically-controlled BL? Brushless Motor efficiently uses energy to match torque and RPM to the changing demands of the application;Compact and ergonomic design at only 9″ long;Weighs only 8.1 lbs. with battery (battery not included) for reduced operator fatigue;Rubberized soft grip handle provides increased comfort on the job;Built-in dual L.E.D. lights with preglow and afterglow illuminates the work area;Easy to operate forward/reverse switch;The Makita 18V LXT? Lithium-Ion Brushless Cordless High Torque 7/16″ Hex Chuck Impact Wrench (XWT09Z, tool only) combines 590 ft.lbs. fastening 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. With the 7/16? hex chuck and hanging ring, it is ideal for linemen and electricians for installation and maintenance of power lines, wood boring, and more. It?s part of Makita?s expanding 18V Lithium-Ion system, the world?s largest cordless tool system powered by 18V Lithium-Ion slide-style batteries. Makita 18V Lithium-Ion batteries have the fastest charge times in their categories, so they spend more time working and less time sitting on the charger.