Dewalt 20V Atomic DCD709 Hammer Drill Vs Dewalt 20V Max XR DCD800

Dewalt DCD709 Angle 5

Dewalt DCD709

Quick take

The Dewalt 20V Atomic DCD709 is a compact and powerful hammer drill, while the Dewalt 20V Max XR DCD800 doesn’t include a hammer drill functionality. Under load, the DCD800 demonstrated notably faster drilling and driving speeds. The DCD709 is shorter and lighter from tip to tail.

Brand Dewalt
Platform 20V Atomic
Motor Brushless
Speeds 2
Torque in-lbs Not advertised
BPM 28,050.0
Clutch settings 15
Chuck size 1/2"
Same as DCD709B
Brand Dewalt
Platform 20V Max XR
Motor Brushless
Speeds 2
Torque in-lbs Not advertised
BPM N/A
Clutch settings 15
Chuck size 1/2"
Same as DCD800B

Editorial opinion

Rating

4.00 / 5 ⭐️’s

Methodology used: Heavy duty

Pros

  • Compact and lightweight
  • Brushless motor
  • Includes a hammer drill functionality
  • Solid warranty

Cons

  • Plastic chuck sleeve isn’t as durable as metal
  • Moderately loud under load

Rating

3.91 / 5 ⭐️’s

Methodology used: Heavy duty

Pros

  • Exceptional drilling and driving speed
  • Advanced worklight features
  • Short length
  • Long warranty
  • All-metal chuck design

Cons

  • No hammer drill
  • Moderately heavy
  • No auxiliary arm included

Global rankings

18 models tested

TestResultRank
Drilling speed (sec.)15.98
Driving speed (sec.)12.19
Torque (in-lbs)Not advertisedNot ranked
RPM1,623.013
Bare weight (lbs)2.467
Drilling Noise (dBA)90.313
TestResultRank
Drilling speed (sec.)11.64
Driving speed (sec.)6.51
Torque (in-lbs)Not advertisedNot ranked
RPM2,046.03
Bare weight (lbs)2.8411
Drilling Noise (dBA)81.94

Kit and bare tool options

DCD709BWP034C

Includes (1) Powerstack 1.7Ah battery

DCD709C2

Includes (2) Max 20V 1.5Ah battery

Lab results

Design & ergonomics

Stands upright (no battery): Yes
Stands upright (w/ battery): Yes
Grip material: Rubber overgrip
Magnetic holder: No
Bit holder: No
Belt hook: Yes
Lanyard compatible: Yes

The DCD709’s handle leans slightly forward for ergonomics when drilling. However, the combination of the handle lean and head slope isn’t as aggressive as other drills. The more aggressive the design, the easier it is to exert forward pressure with your hand and arm while keeping the drill in a flat plane.

There is a rubber overmold surrounding the grip, which provides necessary shock absorption and friction for gripping power.

An all-metal belt hook is included in the box and can be mounted on either side of the base. There is no onboard bit holder or magnetic place for fasteners, though both features are available aftermarket through third-party vendors.

Design & ergonomics

Stands upright (no battery): Yes
Stands upright (w/ battery): Yes
Grip material: Rubber overgrip
Magnetic holder: No
Bit holder: No
Belt hook: Yes
Lanyard compatible: Yes

The DCD800’s handle leans slightly forward to orient the drill in a flat plane when drilling. The handle’s lean and head’s flat angle aren’t as aggressive as other drills, which remain flat when rolling your wrist forward and exerting additional pressure with your arm in line with the head.

A metal belt hook is included and can be mounted on either side of the base in one of the available slots, which can also be used for a third-party bit holder.

Otherwise, a rubber overmold strategically surrounds the grip for shock absorption and grip.

Weight

Dewalt DCD709 On Scale

Bare weight (lbs): 2.46
Weight w/ 2Ah battery (lbs): 3.26
Weight w/ 4Ah battery (lbs): Not tested
Weight w/ 5Ah battery (lbs): 3.88

The DCD709 is moderately lightweight for a drill and is exceptionally lightweight compared to other 18V hammer drills in our test fleet. In practice, we encountered fewer situations of muscle fatigue compared to other hammer drills, which are all bulky.

We tested different battery configurations since the working weight can differ meaningfully from the bare tool weight. We recommend combining the DCD709 with Dewalt’s 20V Powerstack 1.7Ah battery, which weighs less, has a smaller footprint, and runs longer than Dewalt’s 20V Max 2Ah battery, a solid alternative for a svelte setup.

Pair the DCD709 with Dewalt’s 20V Max XR 5Ah battery for a longer run time and improved drilling performance if weight is less of a concern.

Compare drill weight test results

Weight

Dewalt DCD800 On Scale

Bare weight (lbs): 2.84
Weight w/ 2Ah battery (lbs): 3.64
Weight w/ 4Ah battery (lbs): Not tested
Weight w/ 5Ah battery (lbs): 4.26

The DCD800 is moderately heavy for an 18V drill, weighing in at 2.84 lbs in its bare form. The bulky weight does lead to muscle fatigue, as we experienced at several points running repetitive tests.

We tested different battery configurations since the working weight can differ meaningfully from the bare tool weight. We recommend combining the DCD800 with Dewalt’s 20V Powerstack 1.7Ah battery, which weighs less, has a smaller footprint, and runs longer than Dewalt’s 20V Max 2Ah battery, a solid alternative for a svelte setup.

Pair the DCD800 with Dewalt’s 20V Max XR 5Ah battery for a longer run time and improved drilling performance if weight is less of a concern.

Compare drill weight test results

Footprint

Dewalt DCD709 Footprint1
Dewalt DCD709 Footprint2

Max height (in.): 9.125
Max width (in.): 3.125
Chuck to back length (in.): 6.875
Base length (in.): 4.500
Base width (in.): 3.125

One defining feature of the DCD709 is its size. Hammer drills almost always feel bulky and cast a big shadow. However, the DCD709 is moderately compact when measured across its dimensions. Notably, the tip-to-tail length is shorter than most competing hammer drills, helping it squeeze well into obstructed spaces.

The Dewalt 20V Atomic DCD799 Hammer Drill is worth considering for equivalent performance in a smaller footprint.

Compare drill footprint test results

Footprint

Dewalt DCD800 Footprint1
Dewalt DCD800 Footprint2

Max height (in.): 9.375
Max width (in.): 3.125
Chuck to back length (in.): 6.375
Base length (in.): 4.500
Base width (in.): 3.125

The DCD800’s footprint is a tale of two stories, but it is compact in the areas that matter most. It is one of the shortest 18V drills in our test fleet from tip to tail and shorter than some less powerful and supposedly “compact” 12V drills. The tip-to-tail length is essential since it determines how easily it squeezes into tight areas, as we test below in our clearance tests.

However, the DCD800 is tall, and the head size casts a wide shadow.

Compare drill footprint test results

Motor & BPM

Dewalt DCD709 Drill Modes

Motor type: Brushless
Action modes: Drill, hammer
Advertised blows per min. (speed 2): 28,050.0
Advertised blows per min. (speed 1): Not advertised
Variable speed trigger: Yes
Kickback control technology: No
Trigger draw length (in.): 0.250

The DCD709 includes a brushless motor, improving its durability and efficiency over dated brushed motors. There are two action modes that disengage the chuck for unfettered torque. The hammer drilling mode adds in 28,050.0 blows per minute (BPM), which is needed to efficiently drill masonry and thick lumber.

However, the hammering functionality wasn’t effective at improving speeds, as our drilling speed tests below highlight.

The DCD709 doesn’t include kickback control technology to reduce the risk of injuries when binding up.

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Motor & BPM

Dewalt DCD800 Drill Modes

Motor type: Brushless
Action modes: Drill only
Advertised blows per min. (speed 2): N/A
Advertised blows per min. (speed 1): N/A
Variable speed trigger: Yes
Kickback control technology: No
Trigger draw length (in.): 0.250

There is only a single action mode on the DCD800. The drill mode disengages the clutch to offer unfettered torque output for boring wide holes and driving big fasteners. Unlike the sister Dewalt 20V Max XR DCD805 Hammer Drill, there is no hammer functionality.

One feature Dewalt should consider adding is kickback control technology, which some of the best Milwaukee drills include. The DCD800 is exceptionally powerful, increasing the risk of wrist injuries when the drill bit binds up.

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Clutch & speed settings

Dewalt DCD709 Clutch & Speed

Speed settings: 2
Clutch settings: 15

The DCD709 has a familiar two-speed gearbox that runs the drill at the high or low speed in all of the 15 clutch settings and action modes. The highest torque output is achieved in the low setting in drill mode, like all drills.

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Clutch & speed settings

Dewalt DCD800 Clutch & Speed

Speed settings: 2
Clutch settings: 15

The two-speed transmission can run the DCD800 in the high or low setting in the single action mode and any of the 15 clutch settings. As with all drills, setting the drill to the low setting in the drill mode generates the maximum torque output.

While 15 clutch settings are fewer than some drills, it is enough to precisely tune the torque output to avoid stripping screws and finishing with the proper recess.

Compare drill clutch and speed settings

Chuck

Dewalt DCD709 Chuck Closeup

Chuck size: 1/2″
Chuck sleeve material: Plastic

While the chuck sleeve is made from plastic and metal is better for durability, the DCD709’s ratcheting chuck works well. The three jaws lock onto drill bits and didn’t loosen with usage during our tests.

Chuck

Dewalt DCD800 Chuck Closeup

Chuck size: 1/2″
Chuck sleeve material: Knurled metal

The all-metal ratcheting chuck offers better durability and build quality than drills with hybrid metal and plastic chucks. The metal knurled chuck sleeve is perfectly machined to provide the right amount of friction when locking in drill bits with your hand. We didn’t encounter issues with the three jaws loosening throughout our testing, making it completely frustration-free.

Auxiliary arm

Auxiliary arm: No

The DCD709 doesn’t include an auxiliary handle to control recoil and enhance stability during heavy-duty drilling tasks. Since the DCD709 is a moderately powerful drill, including an auxiliary arm could improve user safety in demanding jobs.

Check out the Milwaukee M18 Fuel 2904-20 Hammer Drill or Makita 18V LXT XPH14Z Hammer Drill if you want a more powerful drill with an auxiliary arm.

Auxiliary arm

Auxiliary arm: No

The DCD800 does not include an auxiliary handle, which is a letdown for such a powerful drill. The Milwaukee M18 2904-20 Hammer Drill and Makita 18V LXT XPH14Z Hammer Drill include auxiliary arms and are powerful.

Drilling speed

Drilling speed total time (drill mode, sec.): 15.9
Drilling speed average time (drill mode, sec.): 3.2
Drilling speed total time (hammer mode, sec.): 15.0
Drilling speed average time (hammer mode, sec.): 3.0
Hammer mode speed improvement: 5.7%

Dewalt did a solid job packing sufficient performance into a compact footprint. The DCD709 turned in good results in our drilling speed test, which is designed to understand each drill’s limits.

Critically, it sustained high enough RPMs under load to easily clear chips from the hole and avoid bogging down. However, it doesn’t have enough muscle to be considered a professional-grade hammer drill. Upgrade to the Dewalt 20V Max XR DCD805 Hammer Drill for flagship drilling performance.

We were underwhelmed by the hammer drill functionality in our testing. The hammer drill improved drilling speeds by only 5.7%. Other more effective hammer drills improve speed by upwards of 20.0%.

Compare drilling speed test results

Drilling speed

Drilling speed total time (drill mode, sec.): 11.6
Drilling speed average time (drill mode, sec.): 2.3
Drilling speed total time (hammer mode, sec.): N/A
Drilling speed average time (hammer mode, sec.): N/A
Hammer mode speed improvement: N/A

The DCD800 drills incredibly fast when under heavy load. It averaged 2.3 seconds per 1/2-inch hole bored in our drilling speed tests designed to explore each drill’s upper range. Critically for a contractor-grade drill, it sustains high RPMs throughout the hole depth and blasts out chips to avoid bogging down.

The DCD800 also chewed through other drilling tasks we threw at it, including boring narrower and wider holes with various spade and forstner bits. We needed to drop a gear for additional torque in a few instances.

But consider that the DCD800 isn’t ideal for the average homeowner who rarely pushes any power tool to its limits and could risk injury if not used correctly. There are more compact, powerful options that are more user-friendly, such as the Dewalt 20V Atomic DCD799 Hammer Drill.

Compare drilling speed test results

Driving speed

GRK total driving time forward (sec.): 12.1
GRK average driving time forward (sec.): 2.4
GRK total driving time reverse (sec.): 10.4
GRK average driving time reverse (sec.): 2.1

The DCD709 was reasonably fast in our driving speed test. Again, it doesn’t offer flagship speeds that are needed on the job site. Still, it finished driving 5 1/8-inch GRK RSS fasteners without bogging down or needing to drop a gear to the low setting for improved torque output.

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Driving speed

GRK total driving time forward (sec.): 6.5
GRK average driving time forward (sec.): 1.3
GRK total driving time reverse (sec.): 6.0
GRK average driving time reverse (sec.): 1.2

The DCD800 is blazingly fast when driving structural screws. It took the podium position for driving speed in our Summer 2023 test fleet, averaging 1.3 seconds per fastener, not accounting for downtime between finishing each GRK RSS fastener.

We also tested driving several wider gauge and longer lag bolts into stacked dimensional 2x6s. The DCD800 similarly breezed through each scenario without dropping to the low setting for additional torque.

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Torque

Advertised max torque (in-lbs): Not advertised
Advertised max torque (ft-lbs): Not advertised

Dewalt no longer advertises the torque of its drills and we currently don’t test torque on a torque meter in-house, like we do for impact drivers.

Compare drill torque

Torque

Advertised max torque (in-lbs): Not advertised
Advertised max torque (ft-lbs): Not advertised

Dewalt no longer advertises the torque of its drills and we currently don’t test torque on a torque meter in-house, like we do for impact drivers.

Compare drill torque

Battery lineup

Dewalt 20V Max Battery Lineup

Dewalt offers 1.5Ah, 2Ah, 3Ah, 4Ah, 5Ah, 8Ah, 10Ah, and 12Ah batteries in its 20V Max lineup. Upgrading to the higher Ah options increases battery run time and improves drilling performance, though we’ve not tested all of these batteries to understand the cost tradeoffs.

Buying at least two batteries is best so you don’t miss a beat when draining one battery. We recommend buying a Dewalt 20V Max 2Ah and a Dewalt 20V Max XR 5Ah battery for most Dewalt 20V drill setups for a good balance of performance, price, and size.

Dewalt’s 20V Powerstack batteries may be a smart buying choice for some users. Dewalt advertises improved drilling performance, longer battery run time, and more battery cycles out of its 20V Powerstack 1.7Ah and 5Ah batteries than its standard 20V Max batteries. We plan on testing the performance differences to understand the cost tradeoffs.

Battery lineup

Dewalt 20V Max Battery Lineup

Dewalt offers 1.5Ah, 2Ah, 3Ah, 4Ah, 5Ah, 8Ah, 10Ah, and 12Ah batteries in its 20V Max lineup. Upgrading to the higher Ah options increases battery run time and improves drilling performance, though we’ve not tested all of these batteries to understand the cost tradeoffs.

Buying at least two batteries is best so you don’t miss a beat when draining one battery. We recommend purchasing a Dewalt 20V Max 2Ah and a Dewalt 20V Max XR 5Ah battery for most Dewalt 20V drill setups for a good balance of performance, price, and size.

Dewalt’s 20V Powerstack batteries may be a smart buying choice for some users. Dewalt advertises improved drilling performance, longer battery run time, and more battery cycles out of its 20V Powerstack 1.7Ah and 5Ah batteries than its standard 20V Max batteries. We plan on testing the performance differences to understand the cost tradeoffs.

Charging time

Dewalt DCD709 Fuel Gauge

Charger tested: Dewalt 20V Max (DCB115)
Charging time 2Ah battery (min.): 59.0
Charging time 4Ah battery (min.): Not tested
Charging time 5Ah battery (min.): 139.0
Charging time per Ah (min.): 28.7
Fuel gauge: On battery

The Dewalt charger that is standard in most kits (model DCB115) isn’t as fast as chargers from other brands. In our tests, it took 59.0 minutes to top off a Max 2Ah battery and 139.0 minutes to charge a Max XR 5Ah battery. Expect that this charger will charge batteries at approximately 28.7 minutes per Ah. Faster chargers charge batteries at 20.0 or fewer minutes per Ah.

Nicely, the DCD112 works with Dewalt’s 12V and 20V platform batteries, conveniently saving space in your shop if you have several tools in the Dewalt ecosystem.

Compare drill charging test results

Charging time

Dewalt DCD800 Fuel Gauge

Charger tested: Dewalt 20V Max (DCB115)
Charging time 2Ah battery (min.): 59.0
Charging time 4Ah battery (min.): Not tested
Charging time 5Ah battery (min.): 139.0
Charging time per Ah (min.): 28.7
Fuel gauge: On battery

The DCB115 charger included in many Dewalt kits charges batteries slowly compared to standard chargers from other brands. The charger charges at a rate of 28.7 minutes per Ah, which doesn’t compete with other brands that charge at a rate of less than 20.0 minutes per Ah.

However, one savior is that the DCB115 charges batteries on the 12V and 20V Dewalt platforms, conveniently saving space in your shop if you have several tools in the Dewalt ecosystem.

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RPM

Dewalt DCD709 RPM Chart

Max RPM speed 2: 1,623.0
Max RPM speed 1: 430.0

The DCD709’s RPM output doesn’t match the speed offered with more powerful drills, partly explaining its performance in our drilling and driving speed tests.

We also measured the RPM output with a contact tachometer in the low setting to understand the speed capabilities when torque matters more than RPMs. In the low setting, the DCD709 is slower than many models in our test fleet. In practice, expect that the DCD709 will have enough torque to finish demanding drilling jobs, but it will do so more slowly.

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RPM

Dewalt DCD800 RPM Chart

Max RPM speed 2: 2,046.0
Max RPM speed 1: 648.0

When testing the RPM output on a contact tachometer, we found that the DCD800 matches Dewalt’s lofty advertised claims. The DCD800 generated 2,046.0 RPMs in our lab on the high setting and 648.0 RPMs on the low setting. As our drilling and driving tests demonstrated, the DCD800 is powerful enough to sustain high RPMs under load.

Compare drill RPM test results

Drilling clearance

Min. interior width clearance (in.): 8.500
Min. top edge clearance (in.): 1.375
Min. interior 45-deg. clearance (in.): 6.500

Dewalt’s Atomic tools are designed to be compact and agile, so we entered the drilling clearance tests with high hopes for the DCD709.

It performed exceptionally well for an 18V hammer drill. Notably, the tip-to-tail length is shorter than most competing models in our test fleet, helping it fit into tight corners and between two vertical boards.

Compare drilling clearance test results

Drilling clearance

Min. interior width clearance (in.): 7.825
Min. top edge clearance (in.): 1.500
Min. interior 45-deg. clearance (in.): 6.500

We noted in the Footprint section that the DCD800’s size is a tale of two stories. Let’s focus first on where the size positively impacts its performance in obstructed areas. Since the tip-to-tail length is short, the DCD800 sandwiches well between two vertical obstructions and squeezes into tight corners at an angle.

However, since the head is moderately bulky, the DCD800 doesn’t perform well in our top edge clearance test, designed to understand how easily a drill fits under shelves and in other situations when obstructed from above.

Compare drilling clearance test results

Noise

Dewalt DCD709 Noise Chart

Max no-load noise (dBA): 80.0
Max drilling noise (dBA): 90.3

The DCD709 is loud, just like all hammer drills under load when impacting. It generated 90.3 dBA during our drilling load tests with the hammer mode engaged. This level of noise output rivals the noise that impact drivers generate, and can be harmful with prolonged exposure.

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Noise

Dewalt DCD800 Noise Chart

Max no-load noise (dBA): 83.5
Max drilling noise (dBA): 81.9

The DCD800 is quieter under load than other drills in our test fleet, especially when compared to the maximum noise output of a hammer drill. Still, 81.9 dBA under load is loud enough to cause damage with prolonged exposure.

Compare drill noise test results

Light

Dewalt DCD709 Light Wall
Dewalt DCD709 Light Closeup

Light: Yes
Light location: In base
Light positions: 1
Customizable light settings: None
Light count: Single LED
Light active time (sec.): 20.0

The DCD709’s in-base light sufficiently lights the intended drilling area but isn’t the design we prefer. Light’s located near the trigger that shine directly forward more accurately illuminate the intended work surface. Admittedly, we’re splitting hairs here and the light location isn’t critical. Sufficient is good enough for 95% of the time.

There are no advanced features otherwise. Some of the best Dewalt drills include an in-base light that can be positioned in three settings and has advanced features, such as a spotlight mode and the ability to turn off the light when pulling the trigger.

Light

Dewalt DCD800 Light Wall
Dewalt DCD800 Light Closeup
Dewalt DCD800 Light Customization

Light: Yes
Light location: In base
Light positions: 3
Customizable light settings: Off, On, Spotlight
Light count: Single LED
Light active time (sec.): 20.0

The DCD800 is one of the few drills we’ve tested that goes all out on its worklight features. The in-base light is bright and is configurable in three different positions.

There are also other advanced features. The light can be turned off entirely or act as a spotlight. In Spotlight mode, the light remains on for 20 minutes after pulling the trigger, and the brightness increases to an advertised 70 lumens.

App integration

App integration: No

There is no Bluetooth app integration to track drill usage and location, display tool diagnostics, and allow you to set custom profiles on your phone.

Dewalt’s ToolConnect-branded drills include an app integration, but you’ll only find the ToolConnect feature built natively into its flagship models or as an after-market add-on that slips into the base. You can’t add the after-market ToolConnect chip to the DCD709.

Milwaukee utilizes a similar approach with its One Key lineup, which offers diagnostics and app features that are only available in its flagship tools.

App integration

App integration: After-market add-on

There is no built-in Bluetooth app integration to track drill usage and location, display tool diagnostics, and allow you to set custom profiles on your phone. Some of Dewalt’s flagship power tools include ToolConnect natively, along with some additional features. But there is a slot in the base to add Dewalt’s after-market ToolConnect chip housing for Bluetooth connectivity.

Warranty

Tool warranty (years): 3
Battery warranty (years): 3

Dewalt stands behind the durability of its drills with exceptionally long warranties. The DCD709 has a three-year warranty. Dewalt’s 20V Max batteries include a three-year warranty as well.

 

Warranty

Tool warranty (years): 3
Battery warranty (years): 3

Dewalt stands behind the durability of its drills with exceptionally long warranties. The DCD800 has a three-year warranty. Dewalt’s 20V Max batteries include a three-year warranty.

Dewalt also offers free maintenance and replacement of worn parts for one year for the DCD800.

Nathan Hamilton
Nathan Hamilton
Nathan Hamilton is the founder of DIY Gear Reviews and a recognized expert in the home and DIY space. He has over 200 bylines covering topics such as power tools, hand tools, and woodworking. Nathan is the strategic director for DIY Gear Reviews, deciding everything from the content covered to designing the testing methodologies for lab-tested reviews. He can be emailed at nhamilton@diygearreviews.com.

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