18V, LXT, 1/2", Square Drive, Lithium-Ion, Brushless Cordless, High Torque Impact Wrench Kit, Friction Ring Anvil 5.0Ah, 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, Compact & Ergonomic Design At Only 9" Long, 1/2" Anvil With Friction Ring For Quick & Easy Socket Changes, Eliminates Carbon Brushes, Enabling Motor To Run Cooler & More Efficiently For Longer Life, Electronically Controlled To Optimize Battery Energy Use For Up To 50% Longer Run Time Per Charge, Includes: (2) 18V LXT Lithium-Ion 5.0Ah Battery, 18V LXT Lithium-Ion Rapid Optimum Charger & Tool Bag.