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DEWALT

DEWALT DCD799B 20V MAX* ATOMIC COMPACT SERIES Brushless Lithium-Ion 1/2 in. Cordless Hammer Drill (Tool Only)

  • Based on 670 reviews
Condition: New
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Availability: Only 1 left in stock, order soon!
Fulfilled by Amazon
Arrives Saturday, Aug 22
Order within 3 hours and 5 minutes
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Features

  • OUR SHORTEST 20V MAX* HAMMER DRILL** at 6.49 in. (tool head length only) to access hard to reach areas.
  • GET UP TO 14% MORE POWER***and up to 1,650 RPMs for a variety of drilling applications.
  • HIGH BIT RETENTION with 1/2 in. ratcheting chuck.
  • UNLOCK POWER IN A COMPACT SIZE with 552 UWO and up to 28,050 BPMs to tackle tough jobs in tight spaces.
  • ILLUMINATE WORKSPACES using the on-tool LED work light.

Description

Unlock power in a compact size with the ATOMIC COMPACT SERIES 20V MAX 1/2 in. Hammer Drill. Get up to 552 UWO for a variety of masonry drilling applications in tight spaces with Our Shortest 20V MAX Hammer Drill. The on-tool LED work light illuminates small spaces to optimize productivity on the job site. Battery and charger sold separately.

Brand: DEWALT


Power Source: Battery Powered


Maximum Rotational Speed: 1650 rpm


Voltage: 20


Amperage: 4 A


Power Source: Battery Powered


Maximum Rotational Speed: 1650 rpm


Voltage: 20


Amperage: 4 A


Maximum Chuck Size: 0.5 inches


Additional Features: Compact, Lightweight


Maximum Torque: 2.1 N m


Speed: 1650 rpm


Maximum Power: 552 watts


Torque: 527 in-lb


Drill Type: Hammer Drill


Battery Type: Lithium-ion


Drilling Capacity Wood: 0.5 inches


Compatible Devices: 20V MAX cordless platform


Drilling Capacity Metal: 0.4 inches


Item Dimensions L x W x H: 7"L x 2"W x 8"H


Item Weight: 2.5 pounds


Brand Name: DEWALT


Included Components: Battery Charger


Model Number: DCD799B


UPC: 885911812085


Manufacturer: Dewalt


Manufacturer Warranty Description: Manufacturer Warranty


Number of Items: 1


Item Type Name: Hammer Drill


Manufacturer Part Number: DCD799B


Color: Black/Yellow/Sliver


Material Type: Blend


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Aug 22

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • A powerful portable hammer drill.
I bought this as a refurbished item, so was very pleased to find that it came still sealed in its original plastic packaging inside the box. Brand new! This is a fantastic hammer drill. I have several other DeWalt drills but needed the hammer function to drill through an exterior wall to feed cabling into the house. Though my walls are pretty solid brick, there was easily enough power to drill through the wall like butter. It's also nice and compact. I thought it was so small that it would be at the expense of power, but after a couple of months of use, I've yet to see it struggle with any drilling I've needed it to do. A great portable hammer drill that has plenty of grunt for all household work. ... show more
Reviewed in the United States on July 20, 2026 by JK
    • Great drill. Lots of power in a compact package
This is a pretty versatile little drill. The hammer drill function does a great job at drilling into masonry and concrete, despite being a fairly small drill. It has a nice weight to it, which give a real feeling of quality and power. It also has a variety of settings for drilling/screwing, making for a quite robust set of uses. Battery life seems good; I haven’t really used it long enough to wear a battery fully down with it. My first project with it was pretty involved, so that’s saying something. If you’re in the DeWalt battery space, I don’t think you can go wring with this guy. I can hardly think of a reason I would ever need the larger variety of this. ... show more
Reviewed in the United States on January 30, 2026 by Shawn McBee
    • A lot of power in a small package
I was looking for a lightweight and powerful drill to complement my impact, and this was perfect I know there are more powerful drills out there, but this one has quite a bit of kick considering its size I’ve had no problems drilling screws into dense old growth wood (for the record I live in a mid 20 century house that was framed with all Douglas fir so that would tend to be very difficult to drill into all these years later) at the same time, the variable speed trigger gives me the precision and speed control that I need for more delicate jobs. The clutch is super helpful and although it is a hammer drill, I haven’t had to use it as a hammer drill up to this point, but I’m sure if I ever did it would be very helpful. I’m not one of those people who just uses one brand of tool I have Milwaukee, I have Ryobi and Bosch, and I do have quite a bit of a DeWalt. So I’m not just saying this is some sort of fanboy. I really do enjoy using this drill. ... show more
Reviewed in the United States on July 26, 2026 by Donnie
    • Excellent drill. Amazon price couldn't be beat when I purchased it.
I went down the DeWalt 20v rabbit-hole over 20 years ago. 20 years later, after tons of homeowner use, my drill started showing its age. This was the replacement/ backup. Works as expected. Glad I purchased it. Mine did come with a metal chuck. There has been discussion of some coming with a plastic chuck. ... show more
Reviewed in the United States on May 26, 2026 by RSchief
    • Highly recommend
Recently bought, I have the Workx brand before. I've decided to upgrade. Im very impressed by the torque and the premium feel. It's heavier than my previous one but that's expected because tool and battery is bigger. Its very comfortable to use. Can't comment on the durability as I have only used it twice. I think it's an improvement on my previous tool and a great value for money. ... show more
Reviewed in the United States on June 28, 2026 by Graveney
    • Get it while it’s cheap!
It’s a great drill. powers through anything and gets the job done over and over. Got it for cheap and it keeps getting cheaper too good of a deal to pass up. I love the handle ergonomics and it’s short stout to get into tight places. Sturdy piece of equipment too. It is pretty heavy though feels a lot heavier than my 12v also mine came with a metal chuck definitely made my day opening it up and seeing that ... show more
Reviewed in the United States on January 14, 2026 by Stunnababy
    • Bn producto
Estuvo bn
Reviewed in the United States on April 19, 2026 by Israel
    • Great tool
As described great cordless tool, but small enough to fit in your backpack and it’s light to carry around
Reviewed in the United States on June 9, 2026 by Michael Pence

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