DEWALT DCD999NT-XJ 18V XR Brushless Cordless Hammer Drill Driver 126 Nm (Without Battery and Charger)

The DEWALT DCD999NT-XJ 18V XR Cordless Hammer Drill Driver (Bare Unit) is a battery-powered tool designed for drilling, hammer drilling, and screwdriving applications. This brushless model delivers up to 126 N·m of maximum torque for demanding tasks, with 67 N·m available for softer fastening jobs. An integrated three-speed transmission drives a variable no-load speed of up to 2250 RPM, enabling consistent performance across different material densities. Operators can use the high-speed impact rate of 38,250 bpm to bore holes efficiently into concrete and stone. It accepts maximum drilling diameters of 55 mm in wood, 15 mm in steel, and 13 mm in masonry. Output power reaches 1296 W under heavy load conditions.

Weighing 1610 g without a power pack attached, the pistol-grip drill measures 213 mm in depth, 208 mm in height, and 70 mm in width. Visibility in dark work areas is supported by a built-in light, while a dedicated reverse switch aids in fast screw removal. An included belt hook allows for temporary placement on scaffolding or tool belts. Storage and transport between jobs are handled by the supplied carrying case. As a bare unit, it requires the user's existing DEWALT XR FLEXVOLT batteries and charger to function. This platform compatibility allows the internal electronic module to identify the connected battery pack and manage the energy draw accordingly.

• Full-metal ratcheting chuck with carbide inserts accepts accessory shanks from 1.5 mm to 13 mm.
• 11-position adjustable torque control ensures precise driving depths across different fastener sizes.
• First-gear no-load speed drops to a minimum of 450 RPM for controlled, slow-speed starting in delicate materials.
• Acoustic output during operation includes a measured sound pressure level of 94 dB and a sound power level of 105 dB.
• Vibration emissions peak at 12.5 m/s² during concrete hammer drilling, reducing to 2.7 m/s² for standard metal work.
• The supplied auxiliary handle mounts securely to the collar to counteract rotational forces during high-torque binding.