Dewalt 20V Atomic DCD799 Hammer Drill Vs Milwaukee M18 2607-20 Hammer Drill

Dewalt DCD799 Angle 5

Dewalt DCD799

Quick take

The Milwaukee M18 2607-20 Hammer Drill and Dewalt 20V Atomic DCD799 Hammer Drill are comparable drills that performed similarly in our speed tests. Both models are reasonably powerful under load and rarely bogged down in some of the more demanding drilling and driving tasks we threw at them. Both are excellent options for homeowners. However, the Dewalt DCD799 is far more compact and lighter, and the Milwaukee 2607-20 has a longer warranty.

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 DCD799B
Brand Milwaukee
Platform M18
Motor Brushless
Speeds 2
Torque in-lbs 500.0
BPM 28,800.0
Clutch settings 18
Chuck size 1/2"
Same as N/A

Editorial opinion

Rating

4.02 / 5 stars

Methodology used: Heavy duty

Pros

  • Exceptionally lightweight and compact
  • Includes a hammer drill functionality
  • Brushless motor
  • Long warranty

Cons

  • Plastic chuck sleeve isn’t as durable as metal

Rating

4.21 / 5 stars

Methodology used: Heavy duty

Pros

  • Exceptional drilling performance for the price
  • Includes a hammer drill mode
  • Brushless motor
  • Solid build quality

 

Cons

  • Extended length limits areas it can fit into
  • Hammer mechanism isn’t highly effective

Global rankings

18 models tested

TestResultRank
Drilling speed (sec.)17.211
Driving speed (sec.)12.710
Torque (in-lbs)Not advertisedNot ranked
RPM1,635.011
Bare weight (lbs)2.548
Drilling Noise (dBA)88.29
TestResultRank
Drilling speed (sec.)16.09
Driving speed (sec.)13.111
Torque (in-lbs)500.08
RPM1,686.010
Bare weight (lbs)3.0314
Drilling Noise (dBA)97.318

Recommended configuration

DCD799L1

Includes (2) Max 12V 3Ah battery

Lab results

Drilling speed

Drilling speed total time (drill mode, sec.): 17.2
Drilling speed average time (drill mode, sec.): 3.4
Drilling speed total time (hammer mode, sec.): 13.9
Drilling speed average time (hammer mode, sec.): 2.8
Hammer mode speed improvement: 19.2%

The DCD799 impresses when considering the drilling speed for the size. No compact hammer drill can compete on speed with bulkier and more powerful flagship models. However, the DCD799 is one of our test fleet’s fastest compact hammer drills.

Importantly, it sustained high RPMs throughout the hole depth to clear chips and avoid bogging down.

The hammering functionality performed reasonably well at improving drilling speeds in stacked lumber. On average, we expect 20.0% or better speed improvement when using the hammer drill over the standard drill mode.

We also tested the DCD799 using a range of forstner, spade, and auger bits. We started to feel the DCD799 was underpowered once boring holes 3/4 inch and wider with the forstner and spade bits. It wasn’t underpowered in that it couldn’t complete each task. Instead, we had to drop to the low setting for additional torque to finish the job.

Compare drilling speed test results

Drilling speed

Drilling speed total time (drill mode, sec.): 16.0
Drilling speed average time (drill mode, sec.): 3.2
Drilling speed total time (hammer mode, sec.): 15.3
Drilling speed average time (hammer mode, sec.): 3.1
Hammer mode speed improvement: 4.4%

The 2607-20 has fantastic drilling performance when put up against similarly-priced budget models in and outside of the Milwaukee 18V lineup.

We designed our drilling speed tests to understand how each drill performs at the top of its range. The 2607-20 is one of the fastest and smoothest hammer drills in our low to mid-range price test fleet.

It’s not fast enough to blast chips out when boring holes like a flagship drill. But it did smoothly and quickly complete our drilling speed test without binding up and easily cleared chips from the hole.

Not as impressive, the hammer drill functionality doesn’t improve speed much. We expect a highly capable hammer functionality to improve speeds by 20.0% or more over the standard drill mode.

The 2607-20’s hammer functionality only improved drilling speeds by 4.4%. A higher hammering rate and more power would improve the speed when drilling into masonry and thicker lumber. We’d consider the unimpressive hammering performance more of a downside if the 2607-20 didn’t quickly bore big holes, which isn’t the case.

Compare drilling speed test results

Driving speed

GRK total driving time forward (sec.): 12.7
GRK average driving time forward (sec.): 2.5
GRK total driving time reverse (sec.): 9.9
GRK average driving time reverse (sec.): 2.0

The DCD799 is powerful enough to drive structural screws and lag bolts quickly. Again, it isn’t as performant as drills designed for use on the job site. But context is essential when reviewing the driving speed results and determining how much speed matters.

The DCD799 finished 5 1/8 inch GRK RSS fasteners with an average time of 2.4 seconds per screw. The top-performing hammer drills in our test fleet finished with an average of 1.3 to 1.5 seconds per screw. We’ll let our readers determine if the speed difference is worth the higher cost of moving to a faster drill.

Compare driving speed test results

Driving speed

GRK total driving time forward (sec.): 13.1
GRK average driving time forward (sec.): 2.6
GRK total driving time reverse (sec.): 9.6
GRK average driving time reverse (sec.): 1.9

The 2607-20 won’t win any driving speed contests when driving big lag bolts and other structural screws. You need to open up more of your wallet to secure that crown. But the 2607-20 is more than capable of driving long lag bolts in the high setting, as seen in our video above.

Context is important when reviewing our driving speed test. There isn’t a massive time difference between the fastest drills and those finishing in the middle of the pack. For example, middle-of-the-test pack models like the 2607-20 averaged roughly 2.5 seconds per GRK RSS screw. The fastest, highest-end drills were around 1.5 seconds on average.

There’s no denying how satisfying it is to quickly finish a screw with brute force driving power. However, the time savings of roughly one second per screw isn’t a game changer for most people considering this hammer drill.

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RPM

Dewalt DCD799 RPM Chart

Max RPM speed 2: 1,635.0
Max RPM speed 1: 439.0

The measured RPM output for the DCD799 is comparably low, explaining some of the speed performance against faster drills in our test fleet. A higher RPM output profile throughout its transmission settings would improve the DCD799’s speed under load.

Compare drill RPM test results

RPM

Milwaukee 2607-20 RPM Chart

Max RPM speed 2: 1,686.0
Max RPM speed 1: 429.0

One downside is that the 2607-20 isn’t a high RPM hammer drill. Its RPM output in the high setting is average, whereas the RPM in the low setting falls near the bottom of the pack.

As a result, in practice, the 2607-20 doesn’t set screws quickly, leading to occasionally fumbling the screw before the tip grabs the work material. This drill will also drive and drill more slowly than most in the low setting, albeit the torque increases.

Compare drill RPM test results

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): 500.0
Advertised max torque (ft-lbs): 41.7

While 500.0 in-lbs of advertised torque won’t secure a podium position for the highest torque output, it beats most drills we’ve tested around the same price point. This data point further evidences why it’s one of the best budget drills around, with unmatched build quality and performance in its category.

Note: We don’t currently test drill torque in-house, as we do for impact drivers using a torque meter. The torque commentary discussed here relies upon both advertised torque specifications provided by manufacturers and practical insights learned from performance in our various drilling and driving tests.

Compare drill torque

Chuck

Dewalt DCD799 Chuck Closeup

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

While an all-metal chuck is more durable, the DCD799’s ratcheting chuck works well with its plastic chuck sleeve and metal three-jaw design. Critically, we didn’t experience any instances of the chuck loosening throughout testing.

Chuck

Milwaukee 2607-20 Chuck Closeup

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

Impressive for this price point, the 2607-20 includes an all-metal chuck sleeve. Many competing models choose plastic instead. Opting for metal makes the drill feel more premium and improves durability.

Throughout testing, we were also impressed with how well the three-jaw chuck locked onto bits and retained them when frequently switching between forward and reverse during regular testing. Some other hammer drills inadvertently loosen the chuck when releasing the trigger and switching between forward and reverse without holding the chuck.

Motor & BPM

Dewalt DCD799 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.): 0.375

Dewalt designed the DCD799 with a brushless motor, improving its longevity and efficiency over brushed motors, commonly found in cheap power tools.

There are two action modes. The drill mode disengages the clutch for unrestrained torque output. The hammer drill mode also disengages the clutch but layers in a hammering mechanism that impacts at a rate of 28,050.0 blows per minute (BPM).

You can review our drilling speed tests below, where we measure the speed improvement offered using the hammer drill mode.

There is no kickback control technology, which is a minor letdown. The DCD799 is right on the cusp of being a highly powerful drill. Wrist injuries can occur at this power tier, highlighting why kickback control could be valuable. Some of the best Milwaukee drills included kickback control technology.

Compare drill motors

Motor & BPM

Milwaukee 2607-20 Drill Modes

Motor type: Brushless
Action modes: Drill, hammer
Advertised blows per min. (speed 2): 28,800.0
Advertised blows per min. (speed 1): 7,200.0
Variable speed trigger: Yes
Kickback control technology: No
Trigger draw length (in.): 0.375

Impressively at this budget price point, the 2607-20 includes a brushless motor, improving the motor longevity and driving efficiency over brushed motors. Even as brushless motors have become commonplace, many drills in this price range still opt for a brushed motor to cut costs.

The brushless motor has three action modes. The driving mode engages the clutch to fine-tune the driving profile based on the torque needed.

The drill mode disengages the clutch for unfettered torque performance.

The hammer mode acts like the drill mode but layers in a hammering mechanism that generates 28,800.0 blows per minute in the high setting.

While the hammering functionality improves drilling speed, the comparatively low hammering rate doesn’t drastically improve speeds, as evidenced by our drilling speed tests below.

Compare drill motors

Clutch & speed settings

Dewalt DCD799 Clutch & Speed

Speed settings: 2
Clutch settings: 15

The DCD799 includes a standard two-speed transmission that runs the drill in the low or high setting in all drill modes and clutch settings. Setting the drill to the drill mode in the low setting generates the maximum torque output.

There are 15 total clutch options to tune the torque output for a wide range of tasks. 15 options are fewer than some hammer drills offer. Still, 15 is more than most people will need in practice.

Driving without stripping threads or avoiding cam-out rarely requires precisely finding the single correct clutch setting. Hitting close to the correct torque output works most of the time, and there are no improvements in achieving that outcome with more clutch settings than are needed.

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Clutch & speed settings

Milwaukee 2607-20 Clutch & Speed

Speed settings: 2
Clutch settings: 18

The 2607-20 includes a familiar two-speed gearbox to run the drill at a high or low RPM in any action mode. There are also 18 clutch options, which is modestly high. Whether the number of clutch settings is a pro or con depends on how you use the drill.

Access to more clutch settings allows you to drive screws with more precision, albeit most people don’t use the full clutch settings available.

Compare drill clutch and speed settings

Charging time

Dewalt DCD799 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 included with most kits (model DCB115) isn’t fast. Our tests 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 DCD115 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

Milwaukee 2607-20 Fuel Gauge

Charger tested: Milwaukee M12 & M18 Multi-Volt (48-59-1812)
Charging time 2Ah battery (min.): 41.0
Charging time 4Ah battery (min.): Not tested
Charging time 5Ah battery (min.): 98.0
Charging time per Ah (min.): 20.1
Fuel gauge: On battery

The Milwaukee M12 and M18 multi-volt charger (model 48-59-1812) included in most kits is reasonably fast at charging batteries, including to beat out team red’s most frequent adversary, Dewalt. It takes 41 minutes to charge an M18 2Ah battery and 98 minutes for a 5Ah battery, or approximately 20 minutes per amp-hour.

Milwaukee’s 48-59-1812 charger charges multiple battery voltages in one, conveniently saving space in your shop if you have several M12 and M18 ecosystem tools.

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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

Design & ergonomics

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

Weight

Dewalt DCD799 On Scale

Bare weight (lbs): 2.54
Weight w/ 2Ah battery (lbs): 3.34
Weight w/ 4Ah battery (lbs): Not tested
Weight w/ 5Ah battery (lbs): 3.96

One standout feature is the weight for a hammer drill. It weighs 2.54 lbs in its bare form and retains a lightweight status compared to other hammer drills in our test fleet with a battery attached.

We tested different battery configurations since the working weight can differ meaningfully from the bare tool weight. We recommend combining the DCD799 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.

Or pair the DCD799 with Dewalt’s 20V Max XR 5Ah battery for a longer run time and improved drilling performance if weight is less of a concern.

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Weight

Milwaukee 2607-20 On Scale

Bare weight (lbs): 3.03
Weight w/ 2Ah battery (lbs): 3.97
Weight w/ 4Ah battery (lbs): Not tested
Weight w/ 5Ah battery (lbs): 4.64

The 2607-20 is moderately heavy for an 18V drill, weighing in at 3.03 lbs in its bare form. Over longer and repetitive drilling sessions, expect minor muscle fatigue in your hand, wrist, and forearm.

We tested different battery configurations since the working weight can differ meaningfully from the bare tool weight. We recommend combining the 2607-20 with Milwaukee’s M18 Red Lithium CP 2Ah battery for as lightweight of a setup as possible without limiting performance meaningfully.

Pair the 2607-20 with Milwaukee’s M18 Red Lithium XC 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 DCD799 Footprint1
Dewalt DCD799 Footprint2

Max height (in.): 9.125
Max width (in.): 3.125
Chuck to back length (in.): 6.500
Base length (in.): 4.500
Base width (in.): 3.125

The DCD799 is incredibly compact compared to other hammer drills, a class of drills that is almost always bulky since a hammering mechanism must be designed into the head. Notably, the tip-to-tail length is far shorter than competing 18V models and improves upon the footprint of prior-generation Atomic hammer drills.

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Footprint

Milwaukee 2607-20 Footprint1
Milwaukee 2607-20 Footprint2

Max height (in.): 8.875
Max width (in.): 3.125
Chuck to back length (in.): 7.750
Base length (in.): 4.625
Base width (in.): 3.125

The 2607-20 is moderately svelte when looking at its height with a battery and head width, helping it fit into some tight areas. However, the 2607-20 is incredibly long from tip to tail, with a significant portion of the chuck and head in front of the trigger.

The almost comically elongated nose section biases the weight at the front of the tool, causing it to not stand upright without a battery and leading to some hand fatigue when holding the drill flat.

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Drilling clearance

Min. interior width clearance (in.): 8.125
Min. top edge clearance (in.): 1.500
Min. interior 45-deg. clearance (in.): 6.625

Since the DCD799 sits within the Atomic lineup, we expected it to perform well in our clearance tests. Notably, the DCD799 is incredibly short for a hammer drill from tip to tail. This sizing helps it fit easily between two vertical boards and in tight corners.

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Drilling clearance

Min. interior width clearance (in.): 9.375
Min. top edge clearance (in.): 1.375
Min. interior 45-deg. clearance (in.): 7.750

If you frequently drill flatly between two vertical boards, then the 2607-20 isn’t the drill of choice. The extremely long tip-to-tail length limits the spaces it can fit into without operating the drill at awkward angles.

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Auxiliary arm

Auxiliary arm: No

The DCD799 doesn’t include an auxiliary handle to control recoil and enhance stability during heavy-duty drilling tasks. The DCD799’s power profile is on the verge of being powerful enough that including an auxiliary arm would be helpful to avoid wrist injuries.

Understandably, Dewalt wouldn’t include one in the box, but we’ll side with consumers and say that not including an auxiliary arm is a slight letdown.

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 2607-20 doesn’t include an auxiliary handle to control recoil and enhance stability during heavy-duty drilling tasks. But we don’t see this as a downside. The 2607-20 isn’t designed to tackle the heaviest-duty drilling tasks, such as drilling wide and deep holes in masonry or wood, where an auxiliary handle is helpful.

We’d see not including an auxiliary arm as a downside if it had more muscle.

Noise

Dewalt DCD799 Noise Chart

Max no-load noise (dBA): 79.5
Max drilling noise (dBA): 88.2

Under load with the hammer drill engaged, the DCD799 is moderately loud. We measured 88.2 dBA of noise when boring holes in lumber with the DCD799. This level rivals the noise output of the best impact drivers, which are also harmful with prolonged exposure.

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Noise

Milwaukee 2607-20 Noise Chart

Max no-load noise (dBA): 82.2
Max drilling noise (dBA): 97.3

In hammer drilling mode, the 2607-20 is loud under load. The hammering mechanism is significantly louder than most hammer drills, rivaling the noise output of the best impact drivers.

Compare drill noise test results

Light

Dewalt DCD799 Light Wall
Dewalt DCD799 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 single in-base light shines upward and illuminates a sizeable area where it is focused. Still, lights near the trigger that shine directly forward are more versatile and always precisely illuminate the intended location.

There are no advanced light features, such as a spotlight mode or multi-position light, which some of the best Dewalt drills include.

Light

Milwaukee 2607-20 Light Wall
Milwaukee 2607-20 Light Closeup

Light: Yes
Light location: Near trigger
Light positions: 1
Customizable light settings: None
Light count: Single LED
Light active time (sec.): 15.0

The 2607-20 has a no-frills light that gets the job done. The single LED bulb is bright. But the extended nose of the tool creates shadows on the drilled surface, limiting its utility as a flashlight or spotlight in a pinch.

There are also no advanced features, like a spotlight mode or the ability to disable the light, like some Dewalt drills.

Warranty

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

Dewalt stands behind the durability of its drills with exceptionally long warranties. The DCD799 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 DCD799.

Warranty

Tool warranty (years): 2-3 (depends on model)
Battery warranty (years): 5

Milwaukee stands behind the durability of its drills with exceptionally long warranties. The 2607-20 has a five-year warranty, which is among the longest offered by any manufacturer. Milwaukee’s M18 Li-Ion batteries have two or three-year warranties, depending on the specific model.

Picture of 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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