Black & Decker BDID1202 12-Volt Ni-Cad Cordless Impact Driver 4x the torque and 2x the speed than other 12-volt drills for driving screws and other large fasteners 1/4-inch chuck size (with hex shank) Provides over 800 inch-pounds of torque; operating at 0 to 2,800 BPM, 0 to 2,600 RPM 2-year limited warranty Included with impact driver: two 12-volt batteries, charger, kit box, and 15 hex shank accessories