Model#: DEWNDCD991B

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Brand new items;Full manufacturer warranty available
Manufacturer inspected, repaired and tested items; CPO 120 day money back guarantee
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New items with possible minor cosmetic damage; CPO 120 day money back guarantee
Returned items inspected, repaired and tested by CPO technicians; CPO 60 day money back guarantee

Dewalt DCD991B 20V MAX XR Lithium-Ion Brushless 3-Speed 1/2 in. Cordless Drill Driver (Tool Only)

  • Dewalt DCD991B 20V MAX XR Lithium-Ion Brushless 3-Speed 1/2 in. Cordless Drill Driver (Tool Only)
  • Note: Battery & Charger sold separately
New $139.99
Recon $109.99
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With a high power, high efficiency brushless motor, the DeWALT 20V MAX XR Cordless Lithium-Ion 3-Speed Drill Driver (Tool Only) delivers up to 57ore run time over tools with brushed motors. Compatible with XR Li-Ion batteries (sold separately), this unit can provide 33ore capacity over standard packs.
  • DeWALT-built high power, high efficiency brushless motor delivers up to 57% more run time over brushed
  • 3-speed, high performance (0-2,000 RPM) all-metal transmission optimizes tool-to-task for fast application speeds and improved run time
  • Heavy-duty 1/2 in. ratcheting nitro-carburized metal chuck with carbide inserts for superior bit gripping strength
  • 3-Mode LED provides lighting in dark or confined spaces up to 20X brighter than previous model
  • LED Spotlight Mode features 20 minute shutoff function allowing for extended work time in dark or confined spaces
  • 20V MAX XR Cordless Lithium-Ion Brushless 3-Speed 1/2 in. Drill Driver (Tool Only) - DCD991B
  • Belt Hook
  • 360-Degree Side Handle
  • Tool Only - Batteries and Charger Sold Separately
Compliance and Restrictions
warning: This product can expose you to Lead, which is known to the State of California to cause Cancer and Birth Defect/Reproductive Harm. For more information go to


Series: 20V MAX XR
Cordless: Yes
Length: 8.31 in.
Width: 4.13 in.
Height: 9.94 in.
Weight: 4.25 lbs.
Batteries Included: 0
Battery System: 20V MAX
Battery Type: Li-Ion
Bluetooth Compatibility: No
CSA Safety: Yes
Case Included: No
Charger Included: No
Chuck Size: 1/2 in
Chuck Type: Keyless
Clutch Settings: Yes
ETL Safety: No
Handle Type: Pistol
Motor Type: Brushless
No-Load Speed (RPM): 0-450 / 0-1300 / 0-2000
Power Settings: 3
Power Source: Electric - Cordless
UL Safety: No
Variable Speed Trigger: Yes
Voltage: 20V
Wifi compatibility: No



4.3 / 5.0
15 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Yes, I would recommend this to a friend (5)
Easy To Use (5)
Powerful (5)
Value (4)
Battery Longevity (if applicable) (2)
Best Uses
Home Repair (5)
Large Projects (4)
Frequent Use (3)
Small Projects (3)
Great drill for home and work
I bought this drill about 5 years ago. It still runs today like it did when I pulled it out of the box. I went with Dewalt because my uncle bought a combo set of Dewalt drill, impact, circular saw, and reciprocating saw 15 plus years ago and still uses them today. Even after all the heavy use and abuse they have endured it amazes me that they still perform.
This review was collected as part of a promotion
June 25, 2019
Originally posted at
Yes, I would recommend this to a friend
Easy To Use
Best Uses
Home Repair
Need another one works good.
May 15, 2019
5 months ago
Describe Yourself:
Avid Do-it-Yourselfer
Good machine worth every penny
I've had my drill for a while now maybe going on three yrs I've lost track. It is rugged easy to use and powerful. Im not a big fan of the electronic clutch but it does its job. I prefer the old still clutch. Im sure this clutch is designed so you don't burn out the motor but it can be annoying when driving larger lag bolts. All I hope is that dewalt stops redesigning their batteries, I'm getting tired of buying adapters just to use my older tools. I do recommend this drill it's built to last I've dropped mine from roof tops and it has never failed not even a crack and barely even scratched it; not recommended but nice to know it will hold up.
May 5, 2019
Originally posted at
No Nonsense Brushless American Drill
I scored this drill new for a song and it's held up great. Don't waste your money on the hammer version - if you actually need to punch a hole in concrete SDS+ is the way to go. This drill also has a very nice light (same feature I later found on my Mac Tools (DeWalt 20v 1/2 High Torque Impact) except here you get different duration of spotlight, as opposed to torque settings. Also, the lower "2nd" speed is nice, I wish my DCD777 had a range between 1st and 2nd for times when you're drilling smaller holes in softer metals and can pick up the pace a bit. 10/10 overall, very pleased. Hopefully I can get quite a few more years out of it.
April 13, 2019
Originally posted at
Second time being sent to get repaired
The Drill worked for 3 months then stopped working sent it out for repairs came back. and only last a month and broke again so work on getting it repaired again.
December 22, 2018
Originally posted at
Great in class
Love these. Have six I use in my tech theatre class. Easy to use, which is great for students. Easy to keep charged. Takes a beating. Did I mention teenagers use these?
November 20, 2018
Originally posted at
ice auger power
this powers my nils auger for fishing really good, buy the larger battery for longer run time
This review was collected as part of a promotion
November 12, 2018
Originally posted at
Great Choice on purchase
Absolutely love the power, durability and versatility of this kit. Matched with a 5 amp hour battery and I can go all day without at worry.
This review was collected as part of a promotion
November 12, 2018
Originally posted at
Trigger broke in 1 year
I'm just a DYI guy who does random work around the house. I made the investment in a kit with this drill and an impact driver. Right after my 1 year service and parts warranty, the trigger breaks. Customer service told me it's not covered under the 3 year warranty. They do not stand behind their products, so invest your money else where.
October 30, 2018
Originally posted at
Great tool
Compact and not bad for its weight. I found the battery release to be very easy to change the battery pack with it Spring load action.Having a light to help see screw heads.
September 27, 2018
Originally posted at

Questions & Answers

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Browse 6 questions Browse 6 questions and 5 answers
Is this a hammer drill as well?
Christopher A on Oct 5, 2016
BEST ANSWER: Nope - just a drill.
Do all DeWalt 20v batteries work with this drill?
Go Sharks on Aug 30, 2018
BEST ANSWER: Yes, all DeWalt 20v batteries work - the higher Ah batteries will give more run time, but even the smallest 20v battery does well.
I left my cordless drill on deck at my cabin. Will getting rained on damage it?
A shopper on Sep 22, 2019
BEST ANSWER: Your question will be best answered by the manufacturer, who can provide you with the accurate information. The number to reach the technician is 1-800-433-9258.
A shopper on Jun 9, 2018
How to go into led spot light mode?
A shopper on Feb 2, 2018
How do I change the chuck?
A shopper on Apr 24, 2017

New Vs. Reconditioned

What's the difference between New and Factory-Reconditioned?

Factory-Reconditioned products have been returned to the manufacturer and are restored to like-new operating condition; they go through a rigorous testing and inspection process. Plus, they offer a significant savings vs. new.
  • Reconditioned products may have minor cosmetic blemishes or scratches that do not affect item performance.
  • Reconditioned products may not come with all of the consumables the new version comes with (bits, sanding pads/papers, cases, etc.).
  • Both come with a manufacturer warranty and are covered by our Money Back Guarantee; New is 30 days, Reconditioned is 120 days.
Condition: New Factory Reconditioned
Features: Same Same
Specs: Same Same
Includes: 20V MAX XR Cordless Lithium-Ion Brushless 3-Speed 1/2 in. Drill Driver (Tool Only) - DCD991B,
Belt Hook,
360-Degree Side Handle,
Tool Only - Batteries and Charger Sold Separately
Belt Hook,
360-Degree Side Handle,
Tool Only: Battery & Charger Sold Separately.
Availability: In Stock In Stock
Warranty: 3 Year 1 Year
Price: $139.99 $109.99
You Save: N/A $30.00 (21%)


Most DEWALT® Tools purchased on or after January 1, 2004 come with a warranty package that includes:

Three-Year Limited Warranty. DEWALT will repair, without charge, any defects due to faulty materials or workmanship for three years from the date of purchase. This warranty does not cover part failure due to normal wear or tool abuse. For further detail of warranty coverage and warranty repair information, visit or call 1-800-4-DEWALT (1-800-433-9258). This warranty does not apply to accessories or damage caused where repairs have been made or attempted by others. This warranty gives you specific legal rights and you may have other rights which vary in certain states or provinces.

One-Year Free Service Contract. DEWALT will maintain the tool and replace worn parts caused by normal use, for free, any time during the first year after purchase.

90-Day Money Back Guarantee. If you are not completely satisfied with the performance of your DEWALT Power Tool, Laser, or Nailer for any reason, you can return it within 90 days from the date of purchase with a receipt for a full refund - no questions asked.