The Makita 18V LXT Lithium-Ion Brushless cordless quick-shift mode 3-speed impact driver (model XDT14T) is a best-in-class fastening solution for users who want more torque, longer run-time, and precision fastening features. The XDT14T delivers all of the above in a compact size with a superior power-to-weight ratio. The XDT14T combines a full 1,550 in. lb. of fastening torque with category-leading precision features. Quick-shift mode uses the Brushless Motor electronic controls to find the best balance of speed and torque for each application for more efficient fastening. Another precision feature is tightening mode (T-mode), which down shifts and reduces rotation and impact speed prior to driving the screw into place and is engineered to minimize screw thread stripping, screw breakage and damage to work.