The Makita XWT15Z 18V LXT Lithium-Ion Brushless Cordless 4-Speed 1/2 inch Sq. Drive Impact Wrench w/ Detent Anvil (Tool Only) enhances the fastening control and is perfect for automotive, installation, and fabrication trades. The brushless motor delivers a torque rating of 240 Ft-Lbs and a nut-busting torque of 430 Ft-Lbs. Three forward and three reverse rotation auto-stop modes enhance productivity when the fastener is loosened adequately. Full-speed mode minimizes the pull on the trigger to touch optimum speed. Four-speed power selection gives accurate fastening control for different applications. The motor is controlled electronically to match the torque and the RPM to the application. Star Protection technology helps in preventing overheating, over-discharging, and overloading of the battery. Extreme Protection technology prevents the accumulation of dust and water. The integral LED light brightens up the work surface. Soft grip on the rubberized handle minimizes fatigue and ensures good comfort.