ACDelco ARI2023 Li-ion 18-volt 1/2-Inch  Super Torque Impact Wrench KIT Durable aluminum gearbox housing Variable speed with reversible control and electric brake switch Powerful in-house motor with external changeable carbon brush Built-in LED light for convenient illumination during work Package includes: 2 x Li-ion 18V 3.0 Ah Battery Packs, 1 x Intelligent Charger, and Carrying Case