The Makita 18V LXT Lithium-Ion Brushless 2-Piece Combo Kit (XT288T) gives you two efficient brushless tools for drilling, driving and fastening. The Kit includes the category's fastest-charging 5.0Ah batteries and the breadth-of-line of the 18V LXT System, so your batteries will power the expanding range of Makita tools and accessories. The 18V LXT Brushless 4-Speed Impact Driver (XDT16) sets new standards. The XDT16 offers users four speeds, as well as Makita's exclusive Quick-Shift Mode for increased fastening control. Quick-Shift Mode uses the brushless motors electronic controls to find the best balance of speed and torque for each application for more efficient fastening. Another precision setting is Tightening Mode (T-mode), which downshifts 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. Both tools feature an efficient Makita-built BL Brushless Motor for longer run time, increased power and speed and longer tool life. Its part of Makita's expanding 18V LXT System, the worlds largest cordless tool system powered by 18V Lithium-Ion batteries. Makita 18V LXT batteries have the fastest charge times in their categories, so they spend more time working and less time sitting on the charger.