The DEWALT DCF845B 20V MAX XR 1/4 in. Impact Driver is a cordless fastening tool built for driving screws, structural fasteners, and other common jobsite hardware with more control than a basic impact. This is a cordless impact driver designed for fastening in wood, metal, and general construction work. Model Number: DCF845B. If you want a compact tool that still has the output for demanding work, this one lands in a sweet spot for remodelers, framers, electricians, HVAC techs, and serious DIY users already on the DEWALT 20V MAX platform.

At the center of it is a brushless motor rated for up to 1,825 in-lbs of max torque, along with a no-load speed up to 3,400 RPM and up to 4,200 impacts per minute. Those numbers matter because they translate into faster screw driving, better performance on larger diameter fasteners, and less bogging down when you're working overhead or in awkward positions where you do not want to lean on the tool. DEWALT also calls out 30% more torque compared to the earlier DCF885, so this is a meaningful step up if you're replacing an older entry-level impact driver.

The control setup is a big part of why this model stands out. You get a variable speed trigger plus a 3-speed selector, which makes the tool more versatile than a one-speed impact driver. That matters on finish hardware, self-tapping screws, cabinet installation, light metal fastening, and any task where too much trigger pull can snap a fastener head or strip the workpiece. Then when you move into ledger screws, long construction screws, or repeated fastening, you can step up the speed and keep moving.

Physically, this is a compact and easy-carry impact driver. Lowe's lists it at about 5.15 in. long and roughly 2.2 to 2.35 lbs depending on source and whether you are looking at bare tool or listed tool weight. That short overall length helps in stud bays, under sinks, inside mechanical chases, and around electrical boxes where a drill/driver starts to feel long and clumsy. The 1/4 in. quick-connect hex chuck keeps bit changes simple, especially when you're bouncing between driver bits, nut drivers, and accessory tips through the day.

DEWALT also built this one with everyday jobsite practicality in mind. The integrated 3-LED work light helps in low-light areas such as basements, utility rooms, interior framing, and punch-list work where lighting is never where you need it. The included belt hook is a small feature that matters more than people admit. When you're climbing ladders, moving material, or switching between tools, having the impact driver ride on your side instead of getting set down every two minutes saves time.

On the system side, the DCF845B is a tool-only configuration, so the battery and charger are sold separately. It runs on the DEWALT 20V MAX battery platform, which makes it a practical bare-tool buy for users who already have compatible batteries in rotation. It is also listed as Chip Ready for integration with the DEWALT Tool Connect system, with the chip sold separately. For crews managing multiple tools across vans, jobsites, or service calls, that gives this impact driver an extra layer of fleet usefulness beyond simple fastening performance.

Who should buy it? If you're a pro who wants a compact impact driver for framing, electrical rough-in, sheet metal fastening, deck work, and general construction, this is the kind of daily-carry tool that earns its keep. If you're a homeowner already using DEWALT 20V MAX batteries and want one impact driver that is stronger and more controllable than an entry model, this is a smart upgrade. The main thing to know up front is simple: it is sold as a bare tool, so plan on adding a battery and charger if you are not already on the platform.

A Compact Driver With Enough Punch for Real Work

The DEWALT DCF845B 20V MAX XR 1/4 in. Impact Driver gives you the kind of power and control that makes it easy to leave a bigger, clumsier driver in the truck.

• Who it's for: Pros and serious DIY users who want one cordless impact driver for daily fastening, service work, framing tasks, and general construction.
• Why it stands out: 1,825 in-lbs of torque, 3-speed control, a compact body, and Tool Connect chip-ready capability make it more useful than a basic bare-bones impact.
• Worth knowing: This is a bare tool. If you are not already on DEWALT 20V MAX batteries, you need to budget for a battery and charger.

• Is this a drill or an impact driver? It is an impact driver with a 1/4 in. hex chuck, built for driving screws and fasteners rather than drilling with a standard 3-jaw chuck.
• What is the max torque output? DEWALT rates the DCF845B at up to 1,825 in-lbs of max torque.
• Does it have multiple speed settings? Yes. It has a variable speed trigger and a 3-speed selector for better control across different fastening applications.
• Can it be tracked with Tool Connect? Yes. It is Chip Ready for DEWALT Tool Connect integration, but the chip is sold separately.