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ATOMIC 20-Volt MAX Brushless Cordless 1/2 in. Hammer Drill (Tool-Only)

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Internet # 323845317

Model # DCD799B

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Product Details

About This Product

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

  • Our shortest 20-Volt 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
  • Click here for more information on Electronic Recycling Programs
  • Return Policy

Product Information

Internet # 323845317

Model # DCD799B

Additional Resources

Shop All DEWALT

Specifications

Dimensions: H 8.375 in, W 2.933 in, D 7.25 in

Dimensions

Product Depth (in.)

7.25 in

Product Height (in.)

8.375 in

Product Width (in.)

2.933 in

Details

Battery Amp Hours

No Battery

Battery Power Type

Lithium Ion

Battery Voltage (V)

20V

Battery/Charger

Tool Only

Charger Included

Charger Not Included

Chuck Size (In.)

1/2 In.

Chuck Type

Keyless

Color Family

Yellow

Cordless Tool Type

Hammer Drill

Cordless/Corded

Cordless

Included

Tool Only

Maximum Speed (RPM)

1650 RPM

Motor Type

Brushless

Number of Total Batteries Included

0

Power Tool Features

Built-In Light, Forward/Reverse Switch

Product Weight (lb.)

2.8 lb

Returnable

90-Day

Tools Product Type

Power Tool

Torque (lb-in)

0 In lbs

Warranty / Certifications

Manufacturer Warranty

3 Year Limited Warranty, 1 Year Free Service, 90 Days Satisfaction Guaranteed

Questions & Answers

Does it come with charger
ByOct 20, 2026
1 Answer | 
Answer This Question

Yes, it does.

By|Oct 20, 2026


    What model kit bag comes with this?
    BySep 24, 2026
    2 Answers | 
    Answer This Question

    The part number for the contractors bag is NA705139.

    By|Sep 25, 2026

      Just bought this. No bag with it. Same with the one at Lowe’s. Man everyone is getting so cheap.

      By|Nov 2, 2026

        (1)

        is it keyless?
        BySep 16, 2026
        1 Answer | 
        Answer This Question

        Yes, the DCD799P1 is keyless.

        By|Sep 16, 2026


          Does it work for brick drilling
          BySep 16, 2026
          1 Answer | 
          Answer This Question

          Yes, the DCD799P1 is a hammer drill and delivers power for a variety of masonry drilling applications.

          By|Sep 16, 2026


            Is this drill brushless?
            ByAug 13, 2026
            1 Answer | 
            Answer This Question

            Yes, the DCD799 is Brushless.

            By|Aug 14, 2026


              can you use this hammer dril as areg drill
              ByJun 14, 2026
              1 Answer | 
              Answer This Question

              Yes, the DCD799B features a standard drilling mode in addition to its hammer function.

              By|Nov 1, 2026

                (2)

                do you have to use the hammer drill all the time or only if your drilling into masonry
                ByJun 6, 2026
                1 Answer | 
                Answer This Question

                Always

                By|Jun 9, 2026


                  Is this drill the DCD996B?
                  ByJun 6, 2026
                  1 Answer | 
                  Answer This Question

                  No, this is the DCD1007B drill, which is not the same as the DCD996B.

                  By|Jun 11, 2026


                    Viewing 1-8 of 63

                    Customer Reviews

                    4.6 out of 5

                    ATOMIC 20-Volt MAX Brushless Cordless 1/2 in. Hammer Drill (Tool-Only)
                    DEWALT
                    ATOMIC 20-Volt MAX Brushless Cordless 1/2 in. Hammer Drill (Tool-Only)
                    4.6
                    out of 463 reviews
                    69% Recommend
                    Filter by:
                    Showing 1-10 of 463
                    This customer chose to rate the product and not provide text.
                    by
                    I really enjoy this drill. I have both it and the Milwaukee and it has a slightly better weight. I do with the lights were a bit brighter but it’s solid. I had to put some 5/16 lags in a 4x4 for casters and it handled it with no problems.
                    by
                    Item seems to have been used and scratched then resold at Home Depot
                    by
                    Response from DewaltProductExpertMay 11, 2026
                    Hello, Alex. thank you for taking the time to rate our product. I'm sorry you had a negative experience using the DCD799P1. Your feedback is valuable as we take into consideration every piece of feedback that we come across. It is feedback like yours that allows us to make improvements. Thanks, Deeris DEWALT
                    • Verified Purchase
                    This customer chose to rate the product and not provide text.
                    by
                    Warranty not satisfied
                    I bought this tool back in may in a 5 tool combo kit and it worked quite well until I tried mixing drywall mud with it when it sparked and came to an end. I tried getting it covered under warranty but since the date code on it was from 2023 and I had lost the receipt dewalt will not do anything to fix my issue.
                    by
                    Response from DewaltProductExpertMar 8, 2025
                    Hello phunkyPhilly, Thank you for taking the time to give us your feedback. I am so sorry that you had a negative experience with our Customer Service Department. Our goal is the total satisfaction of our customers and to provide a positive experience. We would like to get more details about your experience. Please contact us at WECARE@sbdinc.com.
                      So I finally got to use my dewalt hammer drill a couple days ago. It was amazing!! Something about the tool puts an ego in my heart. I looked at Milwaukee a few times wondering if I should change brands. But I didn’t want too. I’ve always used Dewalt for over 20 years. And not only that, Milwaukee tries hard to out win Dewalt. But looking over the tools, there is no match to the Dewalt name and Brand. Plus their tools are just little, or small looking tools doing what Dewalt does. Not true as Dewalt last longer and don’t break because of a job to big for the tool. Where as Milwaukee breaks down and slows itself to a halt. So I would like to say sorry to the Dewalt brand for almost switching brands. Won’t happen again..
                      by
                      • Verified Purchase
                      This customer chose to rate the product and not provide text.
                      by
                      • Verified Purchase
                      Was using a the top of the line Bosch drill as my application requires as much torque as possible but the batteries drained too fast. When the Dcd1007 came out, I switched over. The new 8ah power pack lasts me 2 days, and has plenty of torque. The 3 stage with 2k rpm works like a charm. I use the drill for torque drive ratchet binders as a super heavy haul oversized loads semi truck driver in construction. The new wrist protection is actually the best I’ve experienced, even better the Bosch that invented it. Overall exceeded expectations for a heavy duty drill. It’s a bit heavy but comes with the territory when you need something for heavy duty applications and the attachable handle is perfect and best in the business. Have tools from all the big boy companies but the recent line of DeWalt tools coming out are the top in the industry in my opinion and 10+ years in the trade.
                      by
                      • Verified Purchase
                      This customer chose to rate the product and not provide text.
                      by
                      • Verified Purchase
                      This customer chose to rate the product and not provide text.
                      by
                      • Verified Purchase
                      Showing 1-10 of 463 reviews

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                      Product Snapshot

                      Ideal for professionals or homeowners tackling tough jobs in tight spaces, this hammer drill boasts a compact design without sacrificing power.
                      Ideal for professionals or homeowners needing a powerful hammer drill, ensuring maximum power and control with its anti-rotation system.
                      Great for homeowners looking for a powerful and efficient cordless hammer drill, making drilling and hammering tasks easier. This brushless motor provides longer runtime and the LED light illuminates workspaces.
                      Great for homeowners looking for a cordless hammer drill, making drilling and hammering easier. This brushless motor provides longer runtime.

                      Drilling Capacity

                      Motor Power

                      20V

                      Impact Energy

                      Brushless Motor

                      Variable Speed Settings