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DEWALT ATOMIC 20V MAX* Impact Driver, Cordless, Compact, 1/4-Inch, Tool Only (DCF809B) – –

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Only 5.1-inch in length of DEWALT impact driver is designed to fit in tight spaces 1700 in-lbs of torque of the cordless impact driver delivering the power you need to get a majority of applications done Variable speed trigger allows for control and precision on delicate work surfaces DEWALT built brushless motor for efficient performance and runtime 3 bright LEDs for dimly lit workspaces
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Additional information



Power Source

‎Battery Powered


‎20 Volts

Maximum Chuck Size

‎6.35 Millimeters



Included Components

‎(1) DCF809 20V MAX* Brushless Compact 1/4 in. Impact Driver; (1) Belt Clip

Special Feature

‎Variable Speed

Product Dimensions

‎8"L x 6"W x 2.5"H



Maximum Power

‎300 Watts



Part Number


Item Weight

‎2.46 pounds

Item model number


Is Discontinued By Manufacturer



‎One Size

Item Package Quantity


Special Features

‎Variable Speed

Batteries Included?


Batteries Required?


Warranty Description




Customer Reviews

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4.7 out of 5 stars

1,659 ratings
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4.7 out of 5 stars

Best Sellers Rank

#3,731 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #3 in Power Impact Drivers

Date First Available

April 10, 2019

60 reviews for DEWALT ATOMIC 20V MAX* Impact Driver, Cordless, Compact, 1/4-Inch, Tool Only (DCF809B) – –

  1. PRC

    DEWALT ATOMIC 20V MAX Impact r

    impact driver compliments the other Dewalt 20v tools I have. Shipped quickly. Price was 25% off normal price, great value. 3 led lights light up project you are working on. Drill feels good ergonomically. Too new to give a durability rating

    One person found this helpful

  2. Bryan Waters

    Loosens lug nuts

    This thing Took the lug nuts off my ram 2500 using impact sockets!!! Those lug nuts are torqued to 140 ft pounds!!! But what I found to be the strangest thing was if you use standard sockets… (not impact sockets) the gun will barely break a lug nut torqued @ 80 ft pounds??? So make sure you have impact sockets.

    3 people found this helpful

  3. nathaniel eastamn

    Very nice

    It was like I got it from the hardware store new in box

  4. Amazon Customer

    As advertised

    Exactly as advertised. Would buy from again.

  5. the generator guy

    awesome tool

    great impact driver, lots of power

  6. Amazon Customer

    Excellent tool

    Battery life is great. I’m a commercial electrician. Use mine daily. Great tool

  7. jack s.

    Brushless at a good price

    Brushless at a good price 👌

  8. Jorgino f.Jorgino f.

    Everything is CoolOne person found this helpful

  9. RTH

    My 3rd dewalt impact they are awesome.

    I use the impact drivers all the time now. Didn’t care for at first but after using it I’m hooked at how easy it is to use and light weight compared to drills.I’ve don construction work for years and like the 20 dewalt line up. I have a lot of dewalt. Only issue is the life span of batteries. For most they will last long time and I recommend the 4 or 5 battery size best value and use time.

    8 people found this helpful

  10. Amazon Customer

    Good unit

    Comfortable, strong, quick bit release/insert.

  11. Linda M Kirby

    Super buy

    Dependable and durabke

  12. Sergio Exposito

    Todo muy rápido

    Es un excelente producto para trabajar

  13. Tanya

    Works Great!

    The DeWalt impact drill works great, didn’t expect anything less. Easily installs self tapping screws.

  14. Joshua Freier


    This is a good DeWalt tool. Solid performance and durability. The battery life and performance on a DeWalt is not as good as Milwaukee but if you know what you’re doing this will serve you well without having to pay Milwaukee prices. I run DeWalt tools and this is right on par with what I expect from DeWalt.

    One person found this helpful

  15. Charles W. Walley

    Great tool.

    Excellent product.


    would buy again

    very happy with purchase

  17. Jeff Knight

    Very nice

    Good deal works great

    One person found this helpful

  18. Mizzy

    Compact size

    Like the compact size and torque of the impact driver

  19. Amazon Customer


    Dewalt has the best easy to use impact on the market.

  20. Clifford Latney

    Value for your money

    Great price

  21. Luis Malagon

    what you see is not what you get

    this item shows a belt clip and it was not included they said tool only means nothing on it but yet the picture show the clip it wasn’t new it was refurbished so i returned it

  22. Mike Riggs

    Good purchase

    Farm use

  23. Tim

    High Quality Tool

    Thank you for the efficient packaging.This is a high quality tool.

  24. A Anthony

    Awesome power

    This drill kicks ass. I haven’t bought a new drill in a few years and it was time. I’ve been using Dewalt for over 20 years and this drill does not disappoint. It’s got a ton of power and the battery life is outstanding. It’s compact size is perfect for tight spots. I wish I would have bought this drill sooner. I love it!!

    One person found this helpful

  25. casey

    Impact driver

    This things a beast. A full battery is a must for this. Used it on regular woord, hard treated 4*4 beams and driving in masonry bolts. Works like a champ. Can’t go wrong with DeWalt

    One person found this helpful

  26. Tricia

    Everything arrived except for the box

    This arrived in perfect condition. The only complaint is it did not have the box. The manual, drill, and clip were packaged in a plastic envelope. I am really lucky it wasn’t tossed around while shipping!Otherwise I love this for someone smaller like me as a supplement to my normal drill. Love that the batteries all work together in the 20V system!

    One person found this helpful

  27. Greg Lancaster

    replaced like tool

    Bought this to replace a like tool that went south on me. I used the crap out of the old one and was happy with it, so bought a new one.

    One person found this helpful

  28. William Reith

    New or used?

    Was listed as new but clearly it had been opened, handled and maybe used seeing that there are a couple small “scuff” marks that certainly won’t hurt it. That said, it worked great when I put a battery in it. Have yet to use it but will in a few weeks.

    One person found this helpful

  29. Allison

    So much better than drill driver

    You need 2 batteries if you run this all day. I’ve only got 1.3ah desalt batteries and that’s good for half day of constant use.So much better driving & less exertion than my dewalt drill/driver. So worth money for extra tool on shed build

  30. Carey B.

    Works great and really tough

    I purchased this for a large home project where I had to drive 1500 or so screws of various sizes. The compact size of the tool is nice for getting into tight spaces, like between wall studs with longer screws. My smaller 2 amp existing DeWalt batteries lasted for hours. I purchased this model because of the brushless motor design, as it’s supposed to get much better battery life. I think it really works because the batteries really lasted a long time. The speed control has great control too, so I could set the screws perfectly even for delicate work. I was driving a lot of #9 3 1/8″ screws for building framing, and it would drive those screws as deep as I wanted and fast with very little twisting on my wrist, and then if things weren’t quite right, unscrew quickly to start over. I also used it for small #8 1 1/4 screws for trimming and it worked wonderfully there too. I used it on some very large screws in a couple cases, #12 or something, and it worked great there too. Like any impact driver, the impact makes quite a bit of noise when you’re driving large and long screws. I was working close to small farm animals in tight quarters a few times and had to avoid the impact to keep them calm. Could be an issue with neighbors too if they live too close, like in the next apartment.

    12 people found this helpful

  31. Amazon Customer

    Buen precio

    Model and price

  32. John H

    Light and fast

    The battery lasts good for it’s size, really like the bright LED lights

  33. Stephen Early

    The only to go!

    Can’t go wrong with Dewalt tools.

  34. MelC

    Great Value – Great brand

    quick to fill and deliver the order with no issues

  35. Jesse Harshbarger

    Just what I expected.

    Just like my old one like I wanted.

  36. Maria Lopez

    Great tool it works brushless small

    Mechanical and carpenters jobs excellent

  37. mark

    Just a solid nice usable tool.

    good compliment to the rest of the power tools. would be better if there was a low and high speed including the trigger speed control, but its very good indeed.

  38. James


    Price was great.

  39. adriana

    Good prive

    Notice that Doesn’t include a battery and charger

  40. Eight

    Very handy

    Perfect for drilling for masonry anchors

  41. Rigby


    Product seems new and fine came unboxed and in a clear plastic bag no manual or manufactures paperwork. Was a gift for my father he says it works fine but was expecting a new unused product with paperwork.

  42. hockey guy

    I don’t even know where my drill is anymore

    Yea yea… I know they have different uses. But this little thing is so easy to grab and get jobs done, I don’t bother switching anymore.

    One person found this helpful

  43. Guido E Castellanos

    Calidad y puntualidad


  44. Amazon Customer

    Awesome impact driver, exceeds my expectations. Very pleased with this product!

    I liked the great power in the smaller size tool.

  45. Buckrun


    I really like this little impact driver. Very comfortable to use and works good.

  46. PJDSR

    Very Well Built

    I love this new line of compact cordless tools! I’ve already bought 6 of the in various types. Compact and light is very good! Without giving up power.

    One person found this helpful

  47. David McEntire

    A good impact tool for average home owner

    This “Atomic” 1/4″ model does not have the same heft or tork as the model I replaced from a drill and 1/4″ impact combo purchased about 3 1 /2 years ago. The drill lives on, the impact died suddenly.I am a DeWalt 20v fan especially with a 4 or 5 amp battery. Time will tell about this model; but it is definitely not up to par with an older model.

  48. Phillip law

    Got it to me quick


    2 people found this helpful

  49. Scherice Durant

    Feels like it’s refurbished

    HVAC installer and it feels like it was refurbished

    One person found this helpful

  50. Donna

    This was brand new in a sealed deWalt box

    Great product very happy with it.

  51. ZCZC

    Great impact driver

    I would recommend this dewalt impact driver. The only negative is it is mostly made of plastic (the casing). But it has a lot of “nut busting torque” i used this impact drill about 10 screws with a 1.3ah battery and the screws never slipped all screws went in the wood in about half a second. Then used it on loosening a bolt and the impact took it right off.

    2 people found this helpful

  52. Luis

    Su precio

    Muy buena compra

  53. jason

    Big power in a small footprint.

    These things keep getting smaller while the power gets bigger.

  54. J H Callaway

    Easy to use and very economical

    Ease of using different attachments/tools.

  55. Melvin Marsh

    Perfect price and they work great!!

    Great for the money!! Work perfectly

  56. Papaw Jerry

    Love a DeWalt

    Light weight and very powerful. Replaces my 18 volt driver. Wife uses it with a scrubbing pad to clean the tub & shower. Guess I gotta buy one for me.

    3 people found this helpful

  57. Terry L Hammersley

    Love it

    Outstanding tool to have around save me tons of hours My old one died after 7 plus years of heave use building new shop to new metal on barn roof. To you name it it being used.

    4 people found this helpful

  58. Lon

    Happy with DEWALT as usual.

    Use for personal building projects. This was a update from old one, which is still working well.

    3 people found this helpful

  59. Slakerbot

    Not much smaller

    I bought this unit because it is smaller than the xr which turns out to be a much better machine. The atomic gets hot and very loud without much function. Costs $70 to get it rebuilt. Refurb about same price. Just get an xr.

    2 people found this helpful

  60. Kameron C.

    Best drill I’ve owned

    I like the over all ability of the drill. The torque it has is great for spinning off lug nuts to fastening deck screws with ease.

    2 people found this helpful

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