M12, 1/4", Hex Impact Driver Kit, Milwaukee Impact Mechanism Delivers 1,000 In/LB Of Torque, 0-2,500 RPM For Increased Fastening Speed, New Ergonomic Handle Design For Increased Comfort, On Board Battery Fuel Gauge Displays Remaining Run Time, Includes: (2) 1.5Ah Lithium ion Battery Packs, M12 Lithium-Ion Battery Charger, Belt Clip & Carrying Case.