Hammer Drill Driver - Two speed all metal transmission for increased runtime and longer tool life. 14 position adjustable torque control for consistent screwdriving into a variety of materials with different screw sizes. Compact 13mm single sleeve keyless chuck with automatic spindle lock for easy bit change. Impact Driver - Intelligent trigger allowing total control over all applications. 6.35mm 'drop in' keyless hex driver allows for quick, one handed fitment.