This Makita 18 Volt LXT Lithium-Ion cordless impact wrench tool delivers enhanced fastening control that is perfect for a iron and steel workers to pipe fitters, railroad and automotive mechanics, forming carpenters and many more. The 1/2 Inch square drive wrench is precisely designed to provide increased run time, power as well as speed control for unmatched performance. User can achieve precise fastening control through the 3-speed power selection switch that is 0 to 900/0 to 1000/0 to 1800 RPM and 0 to 1800/0 to 2000/0 to 2200 IPM. This electronically-controlled BL brushless motor efficiently uses energy to match torque and RPM to the changing demands of the application. Tool has 1/2 Inch anvil with friction ring for rapid and easy socket changes. The Star Protection Computer Controls technology allows the Star Protection-equipped tool and battery to exchange data in real time and monitor conditions while in use to safeguard against over-loading, over-discharging and over-heating. It has built-in LED light with pre-glow and afterglow illuminates the work area. Tool features electric brake for increased productivity and easy to operate forward/reverse switch. The 9 Inch long ergonomic wrench has rubberized soft grip handle to offer enhanced comfort on the job. Tool hook aids in securing the tool while not in use.