ATOMIC™ 20V MAX* Brushless Cordless 1/2 in. Hammer Drill (Tool Only)

ATOMIC™ 20V MAX* Brushless Cordless 1/2 in. Hammer Drill (Tool Only)

  • 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.
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Product Overview

Unlock power for tough masonry drilling applications with the ATOMIC™ 20V MAX* 1/2 in. Hammer Drill. This compact hammer drill delivers up to 552 UWO† so you can maintain productivity in tight areas.

Additional Features

  • 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.


  • (1) DCD799 ATOMIC COMPACT SERIES™ 20V MAX* Brushless Cordless 1/2 in. Hammer Drill
  • (1) Belt Hook


Chuck Capacity
0.5 in
Chuck Type
Clutch Positions
No Load Speed (BPM)
No Load Speed (RPM)
Power Source
Product Height
7.97 in
Product Length
6.49 in
Product Weight
2.53 lbs
Product Width
2.49 in
Variable Speed



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

We’re confident of the quality of our products, and we’ll repair, without charge, any defects due to faulty materials or workmanship within the specified warranty.

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We take extensive measures to ensure all our products are made to the very highest standards and meet all relevant industry regulations.

Support Manual


  • * Maximum initial battery voltage (measured without a workload) is 20 volts. Nominal voltage is 18.
  • **DCD799 is Our Shortest 20V MAX* Hammer Drill, tool head length only.
  • ***The DEWALT DCD799 with a DEWALT DCB230 battery (sold separately) provides up to 14% More Power vs. DEWALT DCD778 with a DEWALT DCB230 (sold separately).
  • † Based on using DCB230 battery (sold separately).