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DEWALT 20V MAX* 1/4 in. Brushless Cordless Impact Driver (Tool Only) (DCF840B)

5.0 (8) Write Review
Free shipping on orders over $29.99

$83.05

$ 33 .99 $33.99

In Stock

About this item

  • HIGH-PERFORMANCE BRUSHLESS MOTOR delivers 1,700 in-lb of torque and 3,200 rpm to drive large-diameter screws
  • MANEUVER WITH EASE: Compact design for optimized ergonomics and access to difficult-to-reach spots
  • PRO-LEVEL CONTROL and precision with variable speed trigger
  • BRIGHTEN DARK WORK AREAS: Integrated 3-LED work light enhances visibility in low-light spaces


Drive screws and other fasteners with this high-output 20V MAX* 1/4 in. Brushless Cordless Impact Driver that was engineered to be lightweight for ease of use without sacrificing performance. The brushless motor delivers up to 1,700 in-lb of torque and up to 3,200 rpm for driving large-diameter screws. The compact design provides optimized maneuverability and access to confined areas when performing cabinetry and framing jobs. Maintain productivity in low-light spots with a 3-LED on-board work light that illuminates dimly lit workspaces.


Rather Be Kayaking
September 5, 2025
Really like the compact design, balance and the progressive speed impact driver. The torque produced by this impact driver is amazing. Putting in 3" deck screws was effortless. Looking forward to using this with my automotive and landscaping needs. Nice to be able to swap out batteries with my other 20 volt DeWalt tools. Great addition to my DeWalt collection of quality tools. Very pleased with my purchase.
Ramon M.
August 31, 2025
This is a little small impact Driver with a lot of power. Men what a gem that DeWalt made for low's but for some reason I was able too buy this one on Amazon through this Angeiville trading Company for $69.00 tax 4.31= $73.31 then add points Earned I get a good deal for a powerful impact Driver $ 26.56 I will Probably have this Impact for many years. I am very happy😊 I seen all the videos on YouTube able this impact and it true!!!!!!!!!!!!
Jeff
August 3, 2025
Great value
Customer
June 10, 2025
The quality is good, but every picture shows the clip for a tool belt and it doesn't actually come with it. Very miss leading so now I have to order one.
erez
June 6, 2025
good
Artur Khachaturov
January 16, 2025
Good!
Customer
January 1, 2025
 
Ed S. from FL
December 3, 2024
I had a 19 volt Dewalt impact drill. But both NiMh batteries croaked years ago. So I got the starter kit with this driver. I only wish it had a variable speed trigger. But now I am just as manly as my son who got a Milwaukee before I got this.