M18 fuel, 1/2", mid torque, impact wrench with friction ring, delivers up to 450 ft/lb of fastening torque, delivers up to 600 ft/lb of nut busting torque, power state brushless motor outperforms all leading competitors, red link plus intelligence prevents damage to the tool & battery due to overloading or overheating, red lithium batteries deliver more work per charge & more work over the life of the battery, 3 mode drive control provides greater control over output speed & power with a max rpm of 2,400, compact to allow for more access in tight spaces, lightweight with 5.0ah battery for less fatigue, improved rubber over mold to withstand corrosive materials, led light included, utilizes a friction ring design to ensure quick & easy socket changes, includes: 2 red lithium xc50 batteries, m12 & m18 multi voltage charger, belt clip & carrying case.