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Deal.ai › Compare

DeWalt DCD799B Atomic Hammer Drill vs DeWalt 20V MAX XR Hammer Drill DCD1007

The DCD1007 is the stronger tool: more torque, higher speed, a 3-speed metal transmission and an anti-rotation safety system. The DCD799B is the compact, lighter pick for tight spaces and overhead work, and it is sold as a bare tool. Reviewers praise the DCD1007's power and compact head but note its weight during long use. Buy the DCD799B for light masonry and cabinet work; buy the DCD1007 for heavy drilling in concrete, framing and metal.

  • Choose the DCD799B if you want a short, light hammer drill for tight spaces, overhead work and occasional masonry, and you already own 20V MAX batteries.
  • Choose the DCD1007 if you drill concrete, framing and large holes regularly and want maximum power, a 3-speed transmission and anti-rotation safety.

Prices

  • DeWalt DCD799B Atomic Hammer Drill: $79.90 at Walmart (checked today)
  • DeWalt 20V MAX XR Hammer Drill DCD1007: $132.20 at Walmart (checked today)
  • Difference: the DeWalt DCD799B Atomic Hammer Drill is $52.30 cheaper than the DeWalt 20V MAX XR Hammer Drill DCD1007 today
DEWALT
DeWalt DCD799B 20-Volt MAX Atomic Cordless Compact Hammer Drill, 1/2 In., TOOL ONLY

DeWalt DCD799B Atomic Hammer Drill

DeWalt DCD799B 20-Volt MAX Atomic Cordless Compact Hammer Drill, 1/2 In., TOOL ONLY

4.1(8 ratings)
$79.90at WalmartChecked 41 min ago
See all prices and details
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Pros
  • Light at 2.8 lb bare, easy on overhead work
  • Short body fits between studs and in cabinets
  • Brushless motor with 552 UWO
  • LED work light for dim spaces
Cons
  • No anti-rotation safety system
  • Single speed range and lower torque
  • Bare tool: batteries and charger cost extra
  • No written warranty listed
DeWalt
Dewalt 20V Max XR Cordless Hammer Drill (DCD1007)

DeWalt 20V MAX XR Hammer Drill DCD1007

Dewalt 20V Max XR Cordless Hammer Drill (DCD1007)

4.7(92 ratings)
$132.20at WalmartChecked 41 min ago
See all prices and details
Visit Walmart
Pros
  • Highest power in DeWalt's 20V MAX hammer drill line
  • 3-speed metal transmission for control across materials
  • Anti-rotation system adds safety on bind-up
  • Ratcheting metal chuck holds bits firmly
  • Up to 275 holes per charge with an XR battery
Cons
  • Heavier at 4.1 lb bare; noticeable over long use
  • Bulkier than the Atomic for tight spots
  • Full power needs a high-capacity XR pack

What separates them

DeWalt DCD799B Atomic Hammer DrillDeWalt 20V MAX XR Hammer Drill DCD1007
Power552 UWO1530 MWO, about 2,100 in-lbs of torque
Speed1,650 rpm, single speed range2,000 rpm with a 3-speed metal transmission
Hammer rate0-28,050 BPM38,250 BPM
Weight2.8 lb bare4.1 lb bare, about 6.3 lb with an 8.0Ah pack
LengthDeWalt's shortest 20V MAX hammer drill7.5 in head, short for a premium 3-speed drill
ChuckKeyless 1/2 inKeyless 1/2 in ratcheting, nitro-carburized metal with carbide inserts
SafetyNo anti-rotation systemAnti-rotation system shuts the tool down on bind-up, with a red LED indicator
In the boxBare tool with belt hook; battery and charger sold separatelyBare tool or kit with battery and charger

Price history

$169.00$75.00
Nov 1Nov 12
  • DeWalt DCD799B Atomic Hammer Drill: lowest $75.00 on Nov 1 at Amazon; $79.90 on Nov 12.
  • DeWalt 20V MAX XR Hammer Drill DCD1007: lowest $132.20 on Nov 8 at Walmart; $132.20 on Nov 12.

Prices at every store

DeWalt DCD799B Atomic Hammer Drill

  • WalmartNew

    In stockSold by Nalusneakers LLCReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.

    $79.90Free shippingChecked 41 min ago
    Visit Walmart
  • Home DepotNew

    In stock

    $143.02Free shippingChecked 41 min ago
    Visit Home Depot
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $79.90Free shippingChecked 41 min ago
    Visit Amazon
  • eBayNew

    Availability unknownSold by ahgroup941 (100% positive, 8 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.

    $92.00+ $10.07 shippingChecked Nov 8
    Visit eBay

Also available at

  • WalmartCheck price at Walmart
  • eBayCheck price at eBay
  • Tool NutCheck price at Tool Nut

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All 17 stores and price history →

DeWalt 20V MAX XR Hammer Drill DCD1007

  • WalmartNew

    In stockSold by Sceglio Enterprises

    $132.20Free shippingChecked 41 min ago
    Visit Walmart
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $136.99Free shippingChecked 41 min ago
    Visit Amazon
  • Tool NutNew

    Availability unknown

    $179.00Checked 41 min ago
    Visit Tool Nut
  • eBayNew

    Availability unknown

    $182.00Checked 41 min ago
    Visit eBay

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All 19 stores and price history →

Specs compared

SpecDeWalt DCD799B Atomic Hammer DrillDeWalt 20V MAX XR Hammer Drill DCD1007
colorBrownMulticolor
size11/2 In.
Power typeBatteryCordless
Chuck size1/2 in1/2 in
Charger includedNtrue
Tool TypeHammer DrillHammer Drill
Power Voltage20V20V
Amperage4 Amps0
Chuck TypeKeylessRatcheting nitro-carburized metal chuck with ca…
Battery Voltage20V20V
Battery Capacity2.0Ah8 Ah
Battery IncludedNoYes
Show all 40 specsShow fewer specs
SpecDeWalt DCD799B Atomic Hammer DrillDeWalt 20V MAX XR Hammer Drill DCD1007
Battery TypeLithium IonLithium Ion
Number Of Batteries Included1 (with kit)1
Motor TypeBrushlessBrushless
Max Speed1650 RPM2000 RPM
Torque552 UWO0.0 In lbs
Impact Rate0-28050 BPM38250 BPM
Capacity1/2 in (maximum solid bit)Up to 275 holes per charge
Included AccessoriesBelt HookCharger
Height7.97 in.8.6 in

What reviewers say

DeWalt DCD799B Atomic Hammer Drill

Owners of the Atomic line generally rate the compact DeWalt drills well for size and power in tight spots. The main complaints are about buying bare tools and about hammer performance on hard concrete.

What people mention
  • SizePraisedOwners like how short the body is for work between studs and in cabinets.
  • PowerPraisedThe brushless motor is seen as strong for a drill this small.
  • Hammer modeMixedIt handles brick and block but bogs down in hard concrete.
  • BatteryMixedBare-tool buyers must supply their own pack, and small packs run out fast.

DeWalt 20V MAX XR Hammer Drill DCD1007

  • 4.7 / 592 ratings

Reviewers rate the DCD1007 highly, calling it a very powerful, high-torque hammer drill that handles demanding materials with ease. They like the compact head and the LED light.

What people mention
  • PowerPraisedOwners say it drives large bits through concrete, hard maple and angle iron without bogging down.
  • WeightCriticisedReviewers find the roughly 6.3-lb working weight tiring during long overhead sessions.
  • SizePraised

Questions and answers

Which is better for drilling concrete?
The DCD1007. Its higher hammer rate and torque make faster work of anchors and small cores. The DCD799B handles light masonry in tight spots but is slower on repeated holes.
Which is better for overhead or cabinet work?
The DCD799B. It is about 1.3 lb lighter bare and shorter, so it is easier to hold overhead and fit inside cabinets.
Does the DCD799B come with a battery?
No. The DCD799B is a bare tool; batteries and charger are sold separately. The DCD1007 comes as a bare tool or as a kit with a battery and charger.
Is the DCD1007 worth stepping up to?
Yes if you drill concrete, framing or metal often. The extra torque, third speed and anti-rotation system matter on hard materials. For occasional light jobs the DCD799B is enough.
Which lasts longer?
The DCD1007 has the sturdier build: an all-metal 3-speed transmission and a nitro-carburized metal chuck. Both use brushless motors, so either should hold up with normal use.
Do they share batteries?
Yes. Both run on DeWalt 20V MAX lithium-ion packs, so one battery set works across both tools.

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Buying guides that pick them

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Length
6.5 in. (tool head)
7.5 inches
Weight2.53 lbs.4.1 lbs
Width2.49 in.2.9 in
Functionality HighlightsHammer functionHammer function, 3-speed high-performance trans…
Number Of Speed Settings23
Built In FeaturesLED work lightLED light
BrushlessYestrue
Brushless MotorYesYes
Voltage20 volts20 volts
BrandDEWALT—
Volts20 Volts—
Maximum speed1650 rpm—
Electric motor typeBrushless—
AccessoriesBattery Charger—
ModelDCD799B—
Assembled product weight2.8 lb—
Has written warrantyNo—
Watts360 Watts—
Amps3 A—
The 7.5-inch head is short for a 3-speed premium drill and fits tight spaces.
  • LED lightPraisedThe 3-position pivoting light and 20-minute spotlight mode get frequent mention for dark work areas.