Makita XWT14Z 18V LXT Lithium-Ion Brushless Cordless 4-Speed 1/2 in. Square Drive Impact Wrench w/ Friction Ring Anvil (XWT14Z, Tool Only) provides improved fastening control, ideal for automotive, installation, and fabrication trades. The impact wrench combines extended run time and speed control for unmatched fastening performance. It is powered by a Makita-built brushless motor for a longer run time. The brushless motor delivers 240 ft-lbs. of Max Torque and 430 ft-lbs. of Nut-Busting Torque. Precise fastening control is achieved through the 4-speed power selection switch, which accounts for a wide range of applications. 3 Forward and 3 Reverse rotation auto-stop modes offer increased efficiency when the fastener is adequately loosened. The full-speed mode function reduces the trigger pull to reach full speed.