PORTER-CABLE 9977 14.4-Volt Ni-Cad 1/2-Inch Cordless Hammer Drill/Driver Kit Compact 14.4-volt cordless hammer drill with 20-position torque control up to 420 in./lbs. Dual speed settings: Low speed, 0-450 RPM; High speed, 0-1,400 RPM 1/2-inch keyless chuck for quick bit changes Interchangeable Grip-to-Fit handle inserts give a custom feel to the grip Includes two battery packs, diagnostic charger, storage case, bit, and operating manual