18V, LXT, 1/2", Square Drive, Lithium-Ion, Brushless Cordless High Torque, Impact Wrench, Tool Only, No Battery Or Charger Included, Brushless Motor Delivers 740 FT/LB Max Torque & 1,180 FT/LB, Nut Busting Torque, 3 Speed 0-900/0-1,000/0-1,800 RPM & 0-1,800/0-2,000/0-2,200 IPM For Precise Fastening Control, 1/2" Anvil With Friction Ring For Quick & Easy Socket Changes, Efficient Brushless Motor Electronically Controlled To Optimize Battery Energy Use For Up To 50% Longer Run Time Per Charge, Motor Eliminates Carbon Brushes Enabling To Run Cooler & More Efficiently For Longer Life, Electronically Controlled Motor Efficiently Uses Energy To Match Torque & RPM To Changing Demands Of Application, Compact & Ergonomic Design At Only 9" Long, Weighs Only 7.9 LB With Battery Not Included, For Reduced Operator Fatigue.