DeWalt 20V MAX Brushless Cordless 1/4 in. Impact Driver Kit

20V MAX Brushless Cordless 1/4 in. Impact Driver Kit

Features

  • Brushless motor (up to 1,700 in‑lb torque, up to 3,200 RPM)
  • Compact design for improved access in tight spaces
  • Variable speed trigger for control and precision
  • Integrated 3‑LED work light for low‑light work
  • Kit includes battery, charger, tool bag and belt clip
  • Soft bag storage included

Specifications

Battery Capacity [Ah] 2
Battery Chemistry Lithium Ion
Battery Quantity 1
Battery Type Lithium Ion
Battery Voltage [V] 20
Charge Time (Minutes) 60
Color Yellow
Has Led Light? Yes
Impact Rate Per Min. 4200
Is It A Set? Yes
Max. Torque [In Lbs] 1700
No Load Speed [Rpm] 3200
Number Of Pieces 5
Power Source Cordless
Tool Length [In] 11.8
Product Length [In] 11.8
Product Height [In] 9.0
Product Width [In] 3.4
Product Weight [Lbs] 4.43
Product Weight [Oz] 70.88
Storage Soft Bag
Warranty 3 Year Limited Warranty; 1 Year Free Service; 90 Days Satisfaction Guaranteed

Cordless 1/4 in. impact driver with a brushless motor that delivers up to 1,700 in‑lb of torque and up to 3,200 RPM. Compact form factor for access in confined spaces, variable speed trigger for control, and an integrated 3‑LED work light for low‑light tasks. Supplied as a kit with one battery, a charger, a soft tool bag, and a belt clip.

Model Number: DCF840D1

DeWalt 20V MAX Brushless Cordless 1/4 in. Impact Driver Kit Review

4.6 out of 5

First impressions and setup

Out of the box, this DeWalt 20V impact driver kit hits the right notes for a go-to, everyday driver: compact, straightforward, and ready to work. The kit is simple—a driver, a single 2.0Ah battery, a charger, a belt clip, and a soft bag—and that’s really all you need to get moving. The tool itself feels solid without being bulky, and the grip texture and shape are classic DeWalt: confident in the hand, with good balance whether you’re running short bits or a longer socket adapter.

The brushless motor is the star here. DeWalt rates it at up to 1,700 in‑lb of torque, up to 3,200 RPM, and 4,200 impacts per minute. Those aren’t headline-chasing numbers, but they’re well chosen for real-world use. From the first few screws, it’s clear the motor is efficient and eager, especially when you put it under load.

Performance in the field

I put the driver through a mix of jobs: assembling treated-lumber framing with structural screws, running 3-in. deck screws into old joists, driving Tapcons into concrete, and spinning lag screws with a pilot hole. It never felt out of its depth. On wood fasteners, the driver is quick and decisive; on masonry anchors, it keeps momentum better than I expected, staying in the power band and not bogging down once the threads catch. With sockets on small to medium fasteners, it’s snappy and controlled.

The speed/impact pairing—3,200 RPM and 4,200 IPM—does a nice job of sustaining drive speed while still breaking stubborn fasteners loose. It’s not a brute meant for oversized lags all day, but it has enough torque to handle occasional heavy work with reasonable pilot holes. On a ladder or overhead, the compact head and weight distribution make a difference; it’s easy to hold the line on long screws without wobble.

Noise is typical for an impact driver—sharp but not harsh—and vibration is well managed. I noticed very little bit cam-out on Phillips and square-drive screws once the impacts kicked in, which speaks to the motor’s consistency more than anything else.

Trigger, control, and ergonomics

The driver uses a single variable-speed trigger—no multi-speed gearbox or special assist modes—and that suits the tool’s straightforward nature. The trigger is responsive, with a reasonably low start point and good linearity into the mid-range. At the very bottom of the trigger travel, it’s a touch jumpy compared with some premium “precision mode” impacts, so you’ll want a light finger when starting small screws in finished materials. Once you’re into the meat of the pull, control is excellent.

One ergonomic note worth calling out: the forward/reverse switch sits proud and close to the trigger. With bare hands, it’s fine. With gloves, especially thicker work gloves, I found it’s easy to bump the switch when you’re in a tight stance—more often when reversing, less so when driving forward. Right-handed, the issue showed up for me mostly on reverse. Left-handed users may notice the opposite. It’s not a deal-breaker, but it’s something to be aware of if you work gloved most of the time and in cramped spaces.

The handle shape, rubber overmold, and overall balance are strong. With a 2.0Ah pack it feels nimble; with a larger pack it plants nicely for heavier fasteners. The belt clip is sturdy and reversible.

Lighting and visibility

DeWalt’s 3-LED setup around the chuck is still one of the best. It floods the work area evenly without casting a dark shadow behind the bit, and there’s a short afterglow when you release the trigger. That delay sounds small, but it’s genuinely useful for aligning the next fastener or checking your progress in a cabinet or crawlspace.

Battery, charging, and runtime

The single 2.0Ah battery included in the kit is the right baseline for a compact driver. With brushless efficiency, it stretches farther than you might expect: plenty for a couple hundred decking screws, a batch of sheet-metal self-tappers, or an afternoon of miscellaneous fix-it work. The charger brings the pack back from empty in about 60 minutes. If you’re on a jobsite or tackling a full-day project, you’ll want a second pack to avoid downtime. The upside is compatibility: it plays with any 20V MAX pack you already own, so swapping to a 4.0Ah or 5.0Ah battery for heavier sessions is easy.

Bit changes and interface

Bit changes are quick and positive. The 1/4-in. hex collet engages cleanly and releases without fuss. The anvil holds onto bits securely through repeated impact cycles, and I didn’t encounter any sticking or wobble with quality bits. The housing around the front end shrugs off casual contact with hardware and fastener heads without scarring.

Build quality and durability

Fit and finish are what I expect from DeWalt’s mainstream lineup: tight seams, well-molded overmold, and a gearbox that feels stout under load. After a couple of dusty days, the trigger and forward/reverse slide remained crisp. The soft bag is basic but useful for keeping the kit together in a truck box. I prefer a hard case for long-term protection, but for a compact driver kit, the bag keeps the footprint small and carries spare bits, nut drivers, and a second battery easily.

The warranty profile is solid: a 3-year limited warranty, 1-year free service, and a 90-day money-back period. That’s reassuring if this is your first step into the platform, or if you’re outfitting a secondary kit.

What it does best

  • Everyday framing and carpentry fasteners: deck screws, structural screws up to medium sizes, and cabinet hardware.
  • Light-to-moderate mechanical work with sockets: automotive trim, light equipment, and general assembly.
  • Concrete and masonry anchors like Tapcons, where sustained RPM and impacts keep the drive moving.
  • Overhead and tight-space tasks, thanks to the compact head and bright, even lighting.

Where it comes up short

  • Precision starts on delicate fasteners: the lack of assist modes means you need a careful trigger finger on small screws in finished material.
  • Heavier lags all day: it can do the work, but a higher-torque model with multi-speed control would be more efficient for repeated large fasteners.
  • The forward/reverse switch can be bumped with gloves in cramped grips—worth testing with your typical work gloves to see if it’s a fit for you.
  • The kit includes only one battery. For continuous work, budget for a second pack.

Who it’s for

If you’re a homeowner, property manager, or facilities tech looking for a compact, reliable impact to cover 80% of fastener tasks, this driver is right in the wheelhouse. For pros, it makes an excellent primary driver in trim, punch-list, and service roles, or a very capable secondary driver on a framing or remodeling crew. If your day is dominated by structural fasteners, lag bolts, or delicate finish work where assist modes matter, you may want to step up to a higher-spec model with multi-speed and specialized modes.

The bottom line

This DeWalt impact driver focuses on fundamentals—and executes them well. The brushless motor delivers real-world power for its size, the variable trigger is responsive, and the 3-LED lighting remains best-in-class for visibility. It’s compact and comfortable, with build quality that feels ready for daily use. I would have liked a dedicated precision mode and a slightly more guarded forward/reverse switch, and I consider a second battery essential for uninterrupted work. But those are manageable trade-offs in a kit that starts you on the 20V MAX platform with strong performance and a dependable feel.

Recommendation: I recommend this driver to anyone who wants a compact, no-nonsense impact with enough power for most carpentry, metal, and light mechanical tasks. It’s a great entry point into the 20V MAX ecosystem and a reliable addition to an existing kit. If you frequently drive very large fasteners or need assist modes for delicate work, consider a higher-tier model—but for everyday impact driving, this one gets the job done cleanly and efficiently.



Project Ideas

Business

Mobile Assembly & Anchoring Service

Offer on-site assembly and secure anchoring of furniture, TV mounts, shelves, baby gates, and safety straps for new movers and Airbnb hosts. Use the impact driver to quickly set structural and toggle bolts; charge per item plus a trip fee. Upsell stud-finding and hardware upgrades.


Deck and Fence Fastener Refresh

Specialize in replacing popped nails and corroded screws on decks and fences with coated structural screws. The driver’s high torque seats long exterior screws fast; offer seasonal inspections, board re-secure, and gate hardware fixes. Price by linear foot or per-fastener tiers.


Retail Fixture & Signage Install

Subcontract to stores and pop-ups to install gondolas, shelving, slatwall, and signs. Work off-hours; the compact, LED-lit driver excels in tight stockrooms and under-shelf spaces. Provide rapid rollouts, punch lists, and national-brand compliance photo reports.


Van/RV/Closet Upfit Micro‑Contractor

Install cabinet hardware, modular shelving, bed platforms, and cargo tie-downs in vans, RVs, and custom closets. The compact driver accesses confined spaces; variable speed preserves delicate finishes. Sell package tiers (basic, adventure, premium) and partner with local van converters.


Property Turnover Punch‑List Service

Serve landlords and realtors by handling make-ready tasks: resecure handrails, hang blinds, swap cabinet pulls, install door stops, and anchor towel bars. Bundle per-unit pricing with photo documentation. The cordless kit enables fast, multi-room work without extension cords.

Creative

Modular Entryway Mudroom Wall

Build a French-cleat wall system with cubbies, hooks, and shoe shelves from plywood. Use the impact driver to anchor cleats into studs with structural screws, then swap in seasonal modules (coat rack, mail slot, planter). The compact driver and LED light make close-to-wall and low-light installs easy.


Rustic Vertical Garden/Planter Wall

Create a vertical garden from reclaimed pallet slats mounted to furring strips. Drive outdoor-rated screws into masonry or studs for a secure base, then attach planter boxes and drip-irrigation clips. Variable speed helps avoid splitting thin slats; the torque seats long exterior screws quickly.


Hidden LED-Lit Shadowbox Shelf

Make a floating shadowbox shelf with a hinged face and magnetic catches to hide keys, mail, or remotes. Precisely drive small hinge and bracket screws at low speed, and use the driver’s LED light to work inside the dark box. Finish with a concealed LED strip and a cord pass-through.


Flat-Pack Furniture Upgrade

Take a basic flat-pack dresser or bookshelf and reinforce it into heirloom-grade. Add corner braces, pocket-screw joinery, and a plywood back panel secured with confirmat or cabinet screws. The driver’s torque speeds through hard sheet goods while variable speed prevents cam-out on small fasteners.


Garage Bike and Tool Station

Build a wall-mounted bike rack and tool board combo. Lag bolt ledger boards into studs, add steel pegboard, a small hardwood work surface, and a charging shelf. The compact driver fits between tight studs; LED light helps align pilot holes and anchors in dim garages.