18v, lxt, lithium-ion, brushless, cordless impact driver, tool only, no battery or charger included, quick-shift mode uses brushless motors electronic controls to find the best balance of speed & torque for each application, brushless motor delivers 3,600 max rpm & 1,600 in/lb max torque, 4 speed power selection 0-1,100/ 0-2,100/ 0-3,200/ 0-3,600 rpm & 0-1,100/ 0-2,600/ 0-3,600/ 0-3,800 ipm, provides precise fastening control, assist mode a-mode, feature helps eliminate screw cam-out & cross threading by driving low speed until tightening begins, 2 tightening modes t-mode for faster tightening of self-drilling screws in thick or thin gauge metal helps prevent damage to the screw, reverse rotation auto stop mode stops rotation & impact when fastener is loosened adequately, built-in led lights on both sides helps eliminate shadows & illuminate a larger area.

• Quick-Shift Mode™ uses the brushless motor's electronic controls to find the best balance of speed and torque for each application for more efficient fastening
• BL™ Brushless Motor delivers 3,600 Max RPM and 1,600 in.lbs. of Max Torque
• 4-speed power selection (0-1,100/ 0-2,100/ 0-3,200/ 0-3,600 RPM & 0-1,100/ 0-2,600/ 0-3,600/ 0-3,800 IPM) provides precise fastening control for a wide range of applications
• Additional one-touch 4-speed power selector button under the chuck for added convenience
• Assist Mode (A-mode) feature helps eliminate "screw cam-out" and "cross threading" by driving at low speed until tightening begins
• Two Tightening Modes (T-mode) for faster tightening of self-drilling screws in thick or thin gauge metal; helps prevent damage to the screw or workpiece
• Reverse rotation auto-stop mode stops rotation and impact when fastener is loosened adequately
• Built-in L.E.D. lights on both sides helps eliminate shadows and illuminate a larger area
• Compact and ergonomic design at only 4-9/16" long
• Weighs only 3.4 lbs. with battery (battery not included) for reduced operator fatigue