Bosch 18636-02 36-Volt Litheon Hammer Drill 36-volt hammer drill/driver with a ratcheting, carbide-tooth single sleeve 1/2-inch chuck Unibody Powertrain construction keeps the gearing-inch alignment for power and durability Metal reinforced collar; Durashield housing designed to withstand real-world work conditions Includes 1 double-ended bit, Litheon fast charger, 2 Litheon 36-volt batteries, 360-degree auxiliary handle, carrying case Weighs 7.2-pounds with FatPack batteries (without assist handle); 3-year manufacturer-foots warranty