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Internet #313593987

Model #DCD999B

Store SKU #1005474870

20-Volt MAX Brushless Cordless 1/2 in. Hammer Drill/Driver with FLEXVOLT ADVANTAGE (Tool Only)

  • Up to 42% more power when paired with FLEXVOLT batteries
  • Compatible with all DEWALT 20V MAX and FLEXVOLT batteries
  • Heavy-duty 1/2 in. ratcheting nitro-carburized all-metal chuck
  • See More Details

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Product Overview

DEWALT Guaranteed Tough

DEWALT Guaranteed Tough

DEWALT continues to design and optimize professional jobsite solutions for the toughest jobsite conditions.

Maintain Performance Under Load

Maintain Performance Under Load

Less maintenance with the DEWALT built brushless motor versus brushed tools.

Take Advantage of More Power

Take Advantage of More Power

Pair DEWALT FLEXVOLT Batteries with 20V MAX FLEXVOLT Advantage Tools for more power.

Get up to 42% more Power

Get up to 42% more Power

Get up to 42% more power with the DCD999B using a DCB606 versus a DCD999B using a DCB205 battery.

3-Speed Transmission

3-Speed Transmission

Complete a wide variety of applications with 3-speed transmission and 11 clutch settings.

3-Mode LED

3-Mode LED

LED spotlight mode features 20 minute shutoff function allowing for extended work time in dark or confined spaces

Tool Warranty

Tool Warranty

3-Year Limited Warranty, 1-Year Free Service and 90-Day Money Back Guarantee

Lightweight Design

Lightweight Design

20V MAX 2.0, 3.0, and 4.0Ah batteries feature a compact and lightweight design.

No Battery Memory

No Battery Memory

No memory and virtually no self-discharge for maximm productivity and less downtime

Compatibility

Compatibility

20V MAX and 20V/60V MAX FLEXVOLT batteries are compatible with most DEWALT 20V MAX tools.

Battery Capacity

Battery Capacity

As 20V MAX and 20V/60V MAX FLEXVOLT batteries increase in amp hours (Ah) so do the the runtime capacities.

Runtime and Power

Runtime and Power

20V/60V MAX FLEXVOLT batteries are designed for longer runtimes and more power.

Compatible

Compatible

FLEXVOLT Advantage Tools work with 20V MAX and FLEXVOLT Batteries. For optimal performance use with FLEXVOLT batteries.

Take advantage of more power with the 20V MAX* brushless tools with DEWALT FLEXVOLT ADVANTAGE tool technology. This 1/2 in. Cordless Hammer Drill has up to 42% more power when paired with a DCB606 FLEXVOLT Battery vs. a DCB205 20V MAX* 5.0Ah Battery. Battery and charger sold separately.
  • Up to 42% more power** when paired with FLEXVOLT batteries Compatible with all DEWALT 20V MAX* and FLEXVOLT Batteries
  • GREAT BIT GRIP: Heavy-duty 1/2 in. ratcheting nitro-carburized metal chuck with carbide inserts for superior bit gripping strength
  • 20X BRIGHTER LED: 3-mode LED provides lighting in dark or confined spaces up to 20x brighter than the DEWALT DCD985
  • EXTENDED WORK TIME WITH LED: Spotlight mode features 20-minute shutoff function, allowing for extended work time in dark or confined spaces
  • Tool Connect Chip Ready: Chip pocket accepts Tool Connect Chip DCE042 and connects with Tool Connect Site Manager app for easy asset management on the jobsite. (DCE042 sold separately)
  • OPTIMIZE TOOL to task with 3-speed transmission






  • Click here for more information on Electronic Recycling Programs

Info & Guides

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Price
Ratings
(100)
(90)
(24)
(647)
Cordless/ CordedCordlessCordlessCordlessCordless
Voltage (volts)20202018
Power Tool FeaturesLED Light,Variable SpeedKeyless Chuck,LED Light,Variable SpeedKeyless ChuckKeyless Chuck,LED Light,Variable Speed
Chuck TypeKeylessKeylessKeylessKeyless
Chuck Size1/2 In.1/2 In.1/2 In.1/2 In.
Battery Amp HoursNo BatteryNo Battery4 Ah5 Ah
Motor TypeBrushedBrushlessBrushlessBrushless
Voltage (v) 20v
View ProductView ProductView ProductView Product

Specifications

Dimensions

Product Depth (in.)
8.4 in
Product Height (in.)
8.3 in
Product Width (in.)
2.7 in

Details

Battery Amp Hours
No Battery
Battery Power Type
Lithium Ion
Battery Size
20-volt
Battery/Charger
Tool Only
Battery/Charger
Tool Only
Blows per Minute (BPM)
38250
Charger Included
Charger Not Included
Chuck Size
1/2 In.
Chuck Type
Keyless
Color Family
Yellow
Condition
New
Cordless Tool Type
Hammer Drill
Cordless/ Corded
Cordless
Drill/ Driver Type
Hammer Drill/ Driver
Included
Second Handle
Maximum Speed (RPM)
2250 RPM
Motor Type
Brushless
Number of Total Batteries Included
0
Power Tool Features
Keyless Chuck,LED Light,Variable Speed
Product Weight (lb.)
3.54 lb
Returnable
90-Day
Tools Product Type
Power Tool
Voltage (volts)
20

Warranty / Certifications

Certifications and Listings
UL Listed
Manufacturer Warranty
90 Day Money Back Guarantee 3 Year Limited Warranty 1 Year Free Service Contract

Questions & Answers

4Questions14Answers

I have the 20V cordless set. Will this tool work with that battery type?

Asked by Batterycompatability February 5, 2021
3
Answers

yes

Would a drill like this be capable of mixing a 5 gallon bucket of concrete from time to time? I ...

Asked by Alexander February 4, 2021
2
Answers

Obviously that is not the purpose of this tool. Why don't you try it and let us know? It's beefy. This tool is a beast. The DCD999 is the king of hammer drills short of Hilti.

Does this use a regular mason art drill bit or do you need a SDS bit?

Asked by Brian December 5, 2020
6
Answers

If you cannot find a standard round shaft masonry bit then the SDS should also hold inside the chuck. SDS stands for slotted drive system. The SDS tools and bits come in 2 sizes, plus and max. What you'll want to look for are the SDS plus bits as the max bits are too wide to fit. BTW, you can also find some masonry bits in the fastener section with the Tapcon fasteners.

How many pounds of torque does this have with a flexvolt battery? Trying to compare with my 18vol...

Asked by Mark November 21, 2020
3
Answers

Roughly 1200 inch-pounds, which is 100 ft-pounds. BTW, torque is measured not in pounds alone. It is a rotational force. The further you are out from the contact, the more torque you get applying with the same force. Hence, ft-lbs or inch-lbs.

Customer Reviews

  • 4.8
    out of 91 reviews
  • 95% recommend this product
Filter by:
Showing 1-10 of 91 reviews
Amazing cordless drill
[This review was collected as part of a promotion.] I have been using the new DCD999 for several weeks and it is an all around joy to use. The drill is very well balanced – even better balanced than the previous models. Also the rubber overmolding on the grip makes it very comfortable to use. This drill also includes a new, longer side support handle that is befitting a drill that is this powerful and makes it much easier to control. Where this drill shines is the power that it packs with a Flexvolt battery attached. I have used this drill side by side with several previous model DeWalt 18v and 20v hammer-drills drilling into old hardened concrete slabs and nothing can compete with this new drill in speed or torque. Whether you are looking to get your first battery powered hammer-drill or are looking to upgrade from an older model, this drill coupled with a Flexvolt battery will not disappoint.
by BuilderBob
Much improved
[This review was collected as part of a promotion.] I am replacing my 18v from 2009, this is a much better drill all around. First observation, the weight. This drill is not only much lighter(using a 2ah battery), but also feels more balanced. Second the light and light selector is a big improvement. Puts the tiny little dim light by the trigger to shame. As far as power, I haven’t put it under hard work yet...haven’t drilled any concrete holes yet, but I’ll get there. As for what I can tell so far, much smoother, and stronger than my old 18v was in its prime. The extra handle can be multi positioned, and set wide or close to the drill, landing on stability needs. Overall great improvement from my old 18v.
by AustinV
The flashlight feature is *chef’s kiss*
[This review was collected as part of a promotion.] I received this drill as part of free promotion for review. The drill is pretty standard for DeWalt, so it’s already great. I used it to clean up several spots in our deck. There’s extra grip material even beyond the grip area that’s great for ease of use. The most impressive part. to me is the light feature. I’ve had DeWalt drills in the past that would only light while the trigger was pulled. With this drill, you can set it so that the light stays on! Even more, there are settings that allow you to have low, medium, and high light settings. Lastly, the high setting simultaneously sets it to be lit for 20 minutes. I tested this for five of the twenty, and the light didn’t flicker once. This would really be excellent for folks who do a lot of work in lowly lit areas. The brushless feature is great, too.
by Mandahoy829
Feels like a corded drill with never ending power
[This review was collected as part of a promotion.] Got this drill about a week or so ago. I immediately put it to the test. I needed to drill some holes in the cinder block in my shop. I was amazed how easy the process was. I have struggled with other tools in the past drilling into masonry. The Dewalt handled it with ease. Felt more like I was drilling into wood. With 3 speeds this drill really allows you to apply the perfect amount of power. Being a part of the flex volt line, this was really appealing to me. Being able to use my 20v/60v flexvolt batteries is not only more convenient but when I need the added power I don't have to get out a bunch of extension cords and my corded dewalt drill. This will be a time and space saver when going on jobs. Overall I am very happy with this drill, and I know it will be my go to drill from now on. I highly recommend this tool!
by
Powerful!!!
[This review was collected as part of a promotion.] Drill is powerful. It is a bit heavy but is balanced well with a 6 amp flex volt battery. It’s comfortable to use. It’s a Great hammer drill !!!
by ZZzg
DeWALT DCD999 FlexVolt Advantage 1/2” Hammerdrill / Drill Driver Simply put...this is without question a powerhouse of a drill. With the ability to run any 20 volt battery alone, this is quite an animal. Now, with the flexibility to run 60 volt and 20 volt, both battery platform investments are now one. If you are invested in both platforms, efficiencies are born when you can grab a 20 volt battery perform 90% of the work on a given job, grab a 60 volt for those truly demanding applications and FlexVolt Advantage was born. I enjoy construction work and what makes it truly enjoyable for me are great tools. Until now when it came to drills before it was my DCD996. I’m proud to now hold my new drill, the DCD999. With an 1-1/8” Forstner bit and all of my weight, I could not stall the electric motor. With a 2” hole saw again I couldn’t stall it. The drill is smooth and the 3-speed transmission is quite handy. I’m glad DeWALT carried over the LED light design from the previous generation. The stability handle is longer than before and understandably, now I know why. The DCD999 is the new King in my shop!
by BrownBuilt
2 people found this helpful
This hammer drill is just what we needed for some basement cinder block drilling for some planned...
This hammer drill is just what we needed for some basement cinder block drilling for some planned renovations. Hopefully you've read the contents, and know that you need to purchase the battery and charger separately, unless you happen to already own one of the compatible battery types. We have quite a few tools running off of the 20v Max battery, and this adds to our collection. As always, this DeWalt tool is sturdy and heavy-duty. You will not be disappointed.
by MH
2 people found this helpful
I decided on this drill to use in times I can not get any power to use the standard corded drill....
I decided on this drill to use in times I can not get any power to use the standard corded drill. I needed to use the 5ah battery to get enough power to get through treated lumber and brick. I liked the ergonomic fit in my hand, it was comfortable while drilling through the material. I would have preferred a locking chuck over a hand tighten chuck.
by Denise
I needed to drill a 2-1/2 inch hole through a 4 x 6 in order to run electric conduit from undergr...
I needed to drill a 2-1/2 inch hole through a 4 x 6 in order to run electric conduit from underground up into my shed I’m building. I drilled the hole before I built the shed. I have several brands of hammer drills and none of them had the power to bore through the wood with the bit I was using. You can see the bit in one of the photos. It has three different speeds, I used it on the low speed and on Hammer and had no problem boring right through it. I do recommend using the side handle that comes with it. Several little things about this Model I like, the built-in light that has three different modes, one is very bright, the three speeds, the belt clip which is a plus for me because a lot of times I just hang it from the back of my tool belt when I'm up on a ladder. Also the flex volt system is nice, I have several tools that use this battery so that's why I bought it without a battery. It has a great bit grip system, you tighten it up by hand and then turn it approximately a quarter of a turn, you can feel it a lock onto the bit once that happens.
by Livingthedream
2 people found this helpful
I love tools, especially kool tools. This Dewalt 1/2 inch hammer drill is just what you need in y...
I love tools, especially kool tools. This Dewalt 1/2 inch hammer drill is just what you need in your tool pack to make any drilling in concrete a breeze. I didn't realize how much easier a job can be with a tool like this. I ordered it without the flex battery and use my smaller battery but the flex battery will make the tool perform even better. I always liked Dewalt and this drill does not disappoint.
by Fouse
4 people found this helpful
Showing 1-10 of 91 reviews