DeWalt 20V MAX XR Cordless Brushless 1/4 in. 3-Speed Impact Driver (Tool-Only)

20V MAX XR Cordless Brushless 1/4 in. 3-Speed Impact Driver (Tool-Only)

Features

  • Brushless motor
  • Up to 1,825 in‑lbs maximum torque
  • 3‑speed selector
  • Variable‑speed trigger
  • Integrated 3‑LED work light
  • 1/4 in. hex quick‑change (keyless) chuck
  • Forward/reverse control
  • Chip Ready (chip sold separately)
  • Belt clip included
  • Tool-only (battery and charger sold separately)

Specifications

Battery Chemistry Lithium Ion
Battery Voltage (V) 20V
Batteries Included 0 (tool only)
Drive Size 1/4 in. hex (6 mm)
Motor Type Brushless
Maximum Torque (In‑Lbs) 1825
No‑Load Speed (Rpm) 3400
Impacts Per Minute (Ipm) 4200
Number Of Speed Settings 3
Power Source Cordless
Product Weight (Lb) ~2 – 2.35
Dimensions (H X W X D) 5.8 in x 3.375 in x 5.1 in
Included Tool only, belt clip
Warranty 3 year limited warranty; 1 year free service; 90 days satisfaction guaranteed
Returnable 90‑day

Cordless 1/4 in. impact driver with a brushless motor that delivers up to 1,825 in‑lbs of maximum torque. It has a 3‑speed selector and a variable‑speed trigger for control across applications. Integrated 3‑LED work light for improved visibility. Tool-only configuration; battery and charger sold separately. Chip Ready (chip sold separately) for use with the manufacturer's tool-tracking system.

Model Number: DCF845B
View Manual

DeWalt 20V MAX XR Cordless Brushless 1/4 in. 3-Speed Impact Driver (Tool-Only) Review

4.7 out of 5

First impressions and setup

I put the DCF845 to work the same day it arrived, pairing it with the 20V MAX compact 2Ah pack I keep in my drill bag and a 5Ah pack for longer sessions. As a bare tool, it’s compact, light, and straightforward: 1/4 in. hex quick-change chuck up front, 3-speed selector, forward/reverse, and a triple-LED work light that fires as soon as you touch the trigger. Nothing flashy, but the layout makes sense and it’s immediately familiar if you’ve used recent DeWalt impact drivers.

This driver is built around a brushless motor rated at up to 1,825 in-lbs (about 152 ft-lbs) of torque, 0–3,400 RPM, and 0–4,200 IPM. On paper that’s plenty for framing screws, ledger and structural screws, and general fastening. In practice, it lives up to those numbers.

Ergonomics and build

The size and balance are the first things you notice. The head length is short, so it nests into cabinet corners and between studs without a fight. At a little over 2 lb bare, it strikes a sweet spot with a compact battery: light enough for overhead work and all-day assembly, but not so feathery that it feels twitchy. With a 5Ah pack it gains stability and runtime at the cost of some wrist fatigue during repetitive tasks.

The handle contour is classic DeWalt—slim through the neck, with a rubber overmold that stays grippy even with dusty hands. The belt hook is included, sturdy, and easily reversible. The body plastics fit up well on my sample, no obvious gaps, and the trigger modulation is smooth. After a few weeks of use, the tool shows minor cosmetic scuffing and the branding on the housing has started to polish from contact with a tool bag—purely cosmetic, but worth noting if you like your tools looking box-fresh.

As for durability, the chassis feels solid, and the anvil shows no abnormal play. That said, the interface between the battery and handle is a stress point on any compact driver. I make a habit of avoiding hard drops and not using the pack as a pry point, and I’d recommend the same here.

Power and speed

In speed 3, the DCF845 has the muscle to drive 5/16 in. x 4 in. structural screws into PT lumber without a pilot. It’s fast and decisive on framing and deck screws, and it’ll break loose small automotive fasteners that aren’t torqued to oblivion. Speed 2 is the “daily driver” mode for me—sheet goods, cabinet install screws, Tapcons into predrilled holes—fast enough to keep pace, controllable enough to stop cleanly. Speed 1 is gentle and genuinely useful for small-diameter screws, hardware, and when you’re near fragile materials.

The motor has a slightly higher-pitched whine than some competitors, but impact onset is smooth and predictable. With 4,200 IPM, it transitions into impact quickly under load, which helps avoid cam-out once the screw head meets the work. Bit life depends heavily on bit quality, but impact-rated bits hold up well; keep a fresh T25 and T30 on hand and this driver will run through boxes of screws without complaint.

Control and usability

This platform is about as no-nonsense as it gets. The variable-speed trigger offers fine control, especially in low and mid speeds. The 3-speed switch is easy to toggle with your thumb when you need to move from delicate work to heavier fastening. There’s no special precision-assist mode, but between speed 1 and careful trigger work, I didn’t miss it.

The 1/4 in. hex chuck is one-hand friendly: push a bit in and it locks with a positive click; pull the collar to release. Bit retention has been solid—no unintended drops yet. Forward/reverse engages crisply and the detents are firm enough that I never bumped it by accident.

Vibration is well managed for a compact impact. You still get the characteristic hammer feel under heavy load, but it’s not numbing, and the handle’s overmold does a good job of dampening the texture. Noise is typical for the class—use ear protection in close quarters.

Work light and visibility

The three-LED array around the nose is a highlight. It casts even light with minimal shadowing and sits exactly where you need it. It activates with the trigger and lingers for a moment after you release, which is handy for lining up the next fastener. It’s bright enough for interior cabinet installs and dim corners, though it won’t replace a task light for larger work areas.

Runtime and battery pairing

Brushless efficiency shows up in runtime. With a compact 2Ah pack, I got through light assembly and a handful of cabinet installs without swapping packs. On a deck fascia job using 3 in. exterior screws, a 5Ah pack carried me through the afternoon. If you’re balancing weight and runtime, pairing a compact pack for overhead or punch-list work and keeping a 5Ah on hand for long runs makes sense.

Because this is a tool-only purchase, your experience will be shaped by the battery you bring. The driver feels at its best with a compact 2.0–3.0Ah pack for control, and a 5.0Ah for production runs.

Durability notes and maintenance

After several weeks—driving structural screws, cabinet screws, pocket-hole screws, and a smattering of Tapcons—the DCF845 is still tight. The speed selector and direction switch remain crisp, and the chuck shows no wobble. The housing has the usual scuffs, and the printed accents can rub with repeated contact in a crowded tool bag.

To keep it happy:
- Use impact-rated bits to reduce cam-out and shock on the anvil.
- Avoid dropping the tool with a battery installed; the handle-to-foot area takes the brunt of impacts on compact drivers.
- Blow out dust periodically, especially after masonry work.
- If you’re in a multi-user environment, take advantage of the chip-ready tracking slot to keep tabs on it.

On that last point: the tool is “Chip Ready,” meaning there’s a slot for DeWalt’s tool-tracking chip (sold separately). If you manage a fleet or work on large sites, that’s a practical perk. If you’re a homeowner, you can ignore it.

Warranty support is solid: 3-year limited warranty, 1-year free service, and a 90-day satisfaction guarantee.

Value and ecosystem fit

If you’re already on DeWalt’s 20V MAX platform, this driver slots in neatly and instantly upgrades an older brushed impact or early-gen brushless model. The price makes more sense as a tool-only buy for existing DeWalt users than as a gateway into the ecosystem, since you’ll need a battery and charger. As a package of performance, control, and size, it’s competitive in its class and checks the right boxes for both jobsite and serious DIY use.

Pros

  • Strong torque and fast impacts for its size (up to 1,825 in-lbs, 4,200 IPM)
  • Compact head and light weight reduce fatigue and improve access
  • Useful 3-speed control with smooth trigger modulation
  • Excellent 3-LED work light with minimal shadowing
  • Solid bit retention and easy one-handed chuck operation
  • Chip-ready for those who need tracking
  • Belt clip included; good warranty coverage

Cons

  • Cosmetics scuff and logo accents wear with regular bag carry
  • Noise is typical of compact impacts—ear protection recommended
  • Tool-only purchase means added cost if you’re not already on 20V MAX
  • Like most compact drivers, the handle/foot area deserves care to avoid drop damage

Recommendation

I recommend the DCF845 for anyone on the 20V MAX platform who wants a compact, high-output impact driver with straightforward controls. It’s powerful enough for structural screws, controllable enough for hardware installs, and compact enough to live on your belt. The work light is genuinely useful, the ergonomics are dialed in, and the brushless motor makes good on both power and runtime claims. While the cosmetics will show wear and, as with any compact impact, you should treat the handle/foot area with some care, the overall build, performance, and warranty support make it a smart, dependable choice for pros and committed DIYers alike.



Project Ideas

Business

Flat-Pack, Fitness, and Playset Assembly

Offer on-site assembly of furniture, gym equipment, and outdoor playsets. The 3-speed impact driver handles everything from delicate cabinet hardware to long lag screws in playset posts. Upsell anchoring services, anti-tip brackets, and haul-away of packaging.


Deck and Fence Fastener Upgrade & Repair

Specialize in replacing corroded screws, tightening loose boards, and adding structural screws/hurricane ties to older decks and fences. With 1,825 in-lbs torque and socket adapters, you can drive ledger and rail lag screws efficiently. Package inspections, fastener upgrades, and stain/seal add-ons.


Van/Trailer Cargo Upfits (E-Track, Shelving)

Install E-track, plywood liners, bulkheads, and modular shelving in work vans and trailers. The quick-change chuck speeds pilot drilling to driving, and the LED light is ideal inside dark cargo bays. Offer standardized packages by vehicle model and include tool-tracking chip for fleet builds.


Retail/Office Sign and Fixture Installation

Provide mounting for signage, handrails, acrylic barriers, and merchandising fixtures. Use the driver with socket and nutsetter adapters for tapcons, lag anchors, and stand-offs. Offer after-hours scheduling, site surveys, and maintenance contracts for seasonal refreshes.


Wall Mounting & Anchors (TVs, Cabinets, Shelves)

Run a precise wall-mounting service for TVs, floating shelves, closet systems, and garage storage. The driver’s variable speed helps avoid overdriving into drywall anchors and its torque seats heavy-duty lags into studs. Include stud-finding, wire concealment, and safety verification as premium tiers.

Creative

Screw-Relief Portrait Panels

Create wall art by driving hundreds of screws into plywood at varying depths to form portraits or patterns. Use the 3-speed selector for fine depth control and the LED ring to check highlights/shadows. Finish the heads with black oxide, brass, or painted screws for contrast.


French-Cleat Garage Wall System

Build modular cleat-backed panels and holders for tools, garden gear, and sports equipment. The impact driver’s high torque sinks structural screws into studs cleanly, while the quick-change chuck lets you swap between pilot bits and driver bits fast. Add a labeled cleat rail for future expansion.


Reclaimed Wood Feature Wall with Hidden LEDs

Install a staggered reclaimed-wood accent wall using trim-head screws, then route shallow channels behind select boards for LED strip lighting. Variable speed prevents overdriving into softer woods; the LED work light helps align boards in dim rooms. Conceal wiring with painted raceways.


Knock-Down Workbench and Tool Cart

Build a stout bench and matching cart using cross dowels and threaded inserts so it breaks down for moves. The driver’s precise low-speed control helps set inserts without stripping; switch to higher speed to drive lag screws for the base. Add casters and a clamp rack for versatility.


Balcony Planter-Wall and Bench Combo

Construct a vertical cedar planter lattice with an integrated storage bench. Use exterior-grade screws and concrete/masonry anchors as needed; the impact driver powers through structural fasteners and can drive long decking screws without cam-out. Line planters with landscape fabric and add drip irrigation.