DEWALT 20V MAX Cordless 1/2" Impact Wrench DCF900B Tool-Only — Brushless, 4-Speed Precision

Designed for demanding construction, automotive, and industrial tasks, this 20V MAX cordless impact gun pairs brushless efficiency with up to 1030 ft-lbs of fastening torque and 1400 ft-lbs of breakaway torque. The tool-only DCF900B gives professionals power and control while letting you choose batteries and chargers that match your existing DEWALT ecosystem. An integrated LED, Hog ring anvil, and a multi-mode control system make it versatile across worksite environments.

How much torque and power does this impact wrench deliver?

This 1/2" impact wrench produces industry-grade torque for heavy fastening and stubborn breakaway tasks. Peak outputs cover both fastening and breakaway needs, making it suitable for large nuts, couplings, and anchor bolts.

• 1030 ft-lbs maximum fastening torque for secure tightening
• 1400 ft-lbs maximum breakaway torque for seized or rusted fasteners
• Brushless motor for higher efficiency and longer runtime
• Hog ring anvil to hold sockets securely during high-torque use

What controls and features improve accuracy and user safety?

Precision Wrench mode reduces over-torquing in forward operation and limits run-off in reverse, giving more repeatable results when torque control matters. The four-mode push-button selector combined with a variable speed trigger lets you tailor speed and impact intensity for the task at hand.

• Precision Wrench electronic control to minimize overtightening
• 4-speed selector for quick switching between power and finesse
• Variable speed trigger for incremental control while driving fasteners
• On-board LED with selectable brightness for low-light conditions

Can this tool stand up to jobsite conditions and long use?

DEWALT designed the DCF900B for rugged use with impact-resistant housing and a battery-guard interface that cushions battery-to-tool contact. The brushless motor reduces internal wear and improves thermal management for extended operation.

• Durable construction resists common jobsite solvents and impacts
• Battery guard shock-absorbing connection to protect battery cells
• Brushless design lowers maintenance and improves longevity
• 3-year limited warranty for added owner assurance

What accessories and batteries are needed to get started?

The DCF900B is sold as a tool-only unit, so you’ll need a compatible 20V MAX battery and charger. Choosing higher-capacity XR batteries maximizes runtime for long jobs while using existing DEWALT 20V batteries keeps your kit consistent.

• Requires DEWALT 20V MAX battery and charger (sold separately)
• Xr lithium-ion batteries recommended for extended runtime
• Use impact-rated sockets to avoid damage under high torque
• Consider a belt holster or case for transport and protection

This DEWALT 20V MAX XR 1/2" high-torque impact wrench is made for professionals and serious DIYers who need dependable power for heavy-duty bolting, wheel work, flanges, anchor bolts, and other high-torque applications. If you already run DEWALT 20V batteries or require a portable tool with adjustable speed, precise electronic control, and rugged build quality, the DCF900B is engineered to meet those needs while letting you pick the battery capacity that matches your workflow.