Shop
  • Deals
  • Deal checker
  • Black Friday
  • Buying guides
  • Brands
  • Stores
Travel
  • Flight deals
  • Hotel deals
Company
  • Research
  • Press
  • deal.ai apps
Black Friday 2026
  • Walmart
  • Best Buy
  • Target
  • TVs
  • Laptops
  • Headphones
  • Apple
  • Gaming
  • Vacuums
  • Kitchen
  • Toys
  • Smartwatches
  • Tablets
  • Furniture
  • Mattresses
© Deal.ai Inc.
TermsPrivacy
Deal.ai › Compare

DeWalt 20V MAX XR Drill/Impact Combo Kit vs DEWALT 20V MAX Brushless Hammer Drill DCD999B

Buy the DCK2101 combo kit if you need a drill and an impact driver together for framing, decking or general contracting. Buy the DCD999B if you already own DeWalt 20V batteries and want one heavy-duty hammer drill with more torque and a bigger chuck. The combo's brushless drill and impact driver cover more tasks, and owners rate it well. The DCD999B is the stronger single drill, with a 1/2 in. keyless chuck and three speed ranges.

  • Choose the DCK2101 combo kit if you want a hammer drill and an impact driver in one purchase, with two batteries and a contractor bag.
  • Choose the DCD999B if you already have 20V MAX batteries and want one high-torque hammer drill with a 1/2 in. chuck.

Prices

  • DeWalt 20V MAX XR Drill/Impact Combo Kit: $299.00 at The Home Depot (last seen Nov 8)
  • DEWALT 20V MAX Brushless Hammer Drill DCD999B: $170.99 at eBay (last seen Nov 8)
  • Difference: the DEWALT 20V MAX Brushless Hammer Drill DCD999B is $128.01 cheaper than the DeWalt 20V MAX XR Drill/Impact Combo Kit at the latest prices (Nov 8)
DeWalt
DeWalt 20V MAX XR Hammer Drill/Impact 2-Tool Combo Kit with XR POWERPACK Batteries dck2101qq1ww1

DeWalt 20V MAX XR Drill/Impact Combo Kit

DeWalt 20V MAX XR Hammer Drill/Impact 2-Tool Combo Kit with XR POWERPACK Batteries dck2101qq1ww1

4.7(30 ratings)
$299.00at The Home DepotChecked Nov 8
See all prices and details
Visit The Home Depot
Pros
  • Two brushless tools cover drilling and driving
  • Two batteries and a charger mean it runs out of the box
  • Contractor bag keeps the kit together
  • Rated 4.7 out of 5 by owners
Cons
  • Heavier kit at 13.73 lbs
  • Drill is less powerful than the DCD999B
  • No battery included with the bare drill alone
DEWALT
DEWALT 20V MAX 1/2 in. Brushless Hammer Drill/Driver DCD999B

DEWALT 20V MAX Brushless Hammer Drill DCD999B

DEWALT 20V MAX 1/2 in. Brushless Hammer Drill/Driver DCD999B

$170.99at eBayChecked Nov 8
See all prices and details
Visit eBay

Store links may earn us a commission.

Pros
  • High torque for large bits and masonry
  • Three speed ranges give finer control
  • 1/2 in. keyless chuck takes big bits
  • Compact 8 in. body
Cons
  • Tool only, no battery or charger
  • No impact driver in the box
  • No case included

What separates them

DeWalt 20V MAX XR Drill/Impact Combo KitDEWALT 20V MAX Brushless Hammer Drill DCD999B
Tools includedHammer drill plus impact driverHammer drill only
Chuck1/2 in. keyless chuck on the drill13 mm (1/2 in.) keyless chuck
Speed settings3,400 RPM top speed on the DCF845 impact driverThree ranges, 0-450/0-1,300/0-2,000 RPM
Batteries in the boxTwo XR POWERPACK batteries and a chargerTool only, no battery or charger
ClutchAdjustable clutch on the drill11 clutch positions
StorageContractor bag includedNo case included
Best forTwo-tool crews and mixed drilling and drivingHeavy drilling and hammer work with existing batteries

Price history

$349.00$189.99
Nov 1Nov 10
  • DeWalt 20V MAX XR Drill/Impact Combo Kit: lowest $299.00 on Nov 1 at Amazon; $349.00 on Nov 10.
  • DEWALT 20V MAX Brushless Hammer Drill DCD999B: lowest $189.99 on Nov 10 at eBay.

Prices at every store

DeWalt 20V MAX XR Drill/Impact Combo Kit

  • The Home DepotNew

    In stock

    $299.00Free shippingChecked Nov 8
    Visit The Home Depot
  • AmazonNew

    Availability unknown

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

    $299.00Checked Nov 1
    Visit Amazon
  • eBayNew

    Availability unknownSold by retail-dealz-llc

    $309.99Checked Nov 9
    Visit eBay
  • Acme ToolsNew

    Availability unknown

    $349.00Checked 2 h ago
    Visit Acme Tools

Also available at

  • eBayCheck price at eBay
  • Authorized Tool OutletCheck price at Authorized Tool Outlet
  • ToolupCheck price at Toolup

Store links may earn us a commission.

All 21 stores and price history →

DEWALT 20V MAX Brushless Hammer Drill DCD999B

  • Coastal Farm & RanchNew

    In stock

    $206.99Free shippingChecked 2 h ago
    Visit Coastal Farm & Ranch
  • C-A-L Ranch StoresNew

    In stock

    $206.99Free shippingChecked 2 h ago
    Visit C-A-L Ranch Stores
  • The Home DepotNew

    In stock

    $211.65Free shippingChecked 2 h ago
    Visit The Home Depot
  • eBayNew

    Availability unknownSold by sm19-71 (100% positive, 33 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.

    $170.99+ $9.50 shippingChecked Nov 8
    Visit eBay

Also available at

  • eBayCheck price at eBay

Store links may earn us a commission. Some prices via Klarna.

All 15 stores and price history →

Specs compared

SpecDeWalt 20V MAX XR Drill/Impact Combo KitDEWALT 20V MAX Brushless Hammer Drill DCD999B
Battery Voltage20V20 V
Power SourceCordless—
Number Of Tools2—
Number Of Batteries2—
Motor TypeBrushless—
Speed3,400 RPM (DCF845)—
Case IncludedYes—
Case TypeContractor Bag—
Weight13.73 lbs—
Included AccessoriesCharger—
Intended ApplicationDrilling—
PatternLetter Pattern—
Show all 29 specsShow fewer specs
SpecDeWalt 20V MAX XR Drill/Impact Combo KitDEWALT 20V MAX Brushless Hammer Drill DCD999B
Clothing SizeXXS—
Actual ColorWhite—
colorWhite—
sizeXXS—
Voltage (V)20.0—
No. of Batteries (pcs)2—
Battery type—Lithium Ion
Chuck size—13 mm
Chuck type—Keyless
No load speed—

What reviewers say

DeWalt 20V MAX XR Drill/Impact Combo Kit

  • 4.7 / 530 ratings

Rated 4.7 out of 5 from 30 ratings, buyers are broadly satisfied with the kit's power and build. Complaints center on weight and the soft bag rather than the tools themselves.

What people mention
  • PowerPraisedOwners say both tools drive screws and bore holes without bogging down.
  • Battery lifePraisedThe XR POWERPACK batteries are reported to last through long sessions and recharge quickly.
  • WeightCriticisedThe full kit at 13.73 lbs is called heavy for carrying between jobs.
  • Carry caseMixedThe contractor bag is roomy but buyers would prefer a hard case.

DEWALT 20V MAX Brushless Hammer Drill DCD999B

Owners and reviewers rate the DCD999B as one of the strongest 20V MAX hammer drills, praising its torque, speed selection and build. Complaints focus on weight and on it being a bare tool that needs existing batteries.

What people mention
  • PowerPraisedOwners say it drills and drives with little effort, even in hard materials.
  • Speed controlPraisedReviewers like the three speed ranges and clutch for matching the tool to the task.
  • WeightCriticisedSome find it heavy and tiring for overhead work or long sessions.
  • Bare toolMixedBuyers on the 20V MAX platform see it as a sensible add-on; others dislike that no battery or charger is included.

Questions and answers

Which is better for masonry and concrete?
The DCD999B. Its hammer mode and higher torque handle larger masonry bits better than the combo's drill.
Which is better for driving screws all day?
The combo kit. Its impact driver is built for repeated fastening, while the DCD999B is a drill.
Do I need batteries for the DCD999B?
Yes. It ships as a bare tool, so you need DeWalt 20V MAX batteries and a charger.
Which lasts longer?
Both use brushless motors. The combo spreads wear across two tools, while the DCD999B is built for heavier single-tool duty.
Is the combo worth stepping up to?
If you have no 20V tools, yes. You get two tools, two batteries and a charger in one purchase.

Ask our shopping agent

It checks today's price at every store, compares the alternatives and answers in about a minute.

Enter to send, Shift+Enter for a new line

More comparisons

  • DeWalt 20V MAX XR Hammer Drill/Impact 2-Tool Combo Kit with XR POWERPACK Batteries dck2101qq1ww1 vs DEWALT DCK449E1P1 20V MAX XR Brushless 4-Tool Combo Kit with DEWALT POWERSTACK Compact Battery and 5.0Ah Battery
  • DEWALT 20V MAX XR Hammer Drill and ATOMIC Impact Driver 2 Tool Cordless Combo Kit with (2) 4.0Ah Batteries, Charger, and Bag DCK2050M2 vs DEWALT 20V MAX 1/2 in. Brushless Hammer Drill/Driver DCD999B
  • DEWALT 20V MAX* 1/4 in. Brushless Cordless Impact Driver (Tool Only) (DCF840B) vs DEWALT 20V MAX 1/2 in. Brushless Hammer Drill/Driver DCD999B
  • DEWALT DCF850 Impact Brushless Cordless Electric Drill 20V Lithium Driver electric screwdriver vs DEWALT 20V MAX 1/2 in. Brushless Hammer Drill/Driver DCD999B

Buying guides that pick them

  • Best DeWalt power tools
  • Best DeWalt brushless cordless power tools
0-450/0-1300/0-2000 RPM
Number of speed settings—3
Clutch positions—11
Beats per minute—38250
Impact rate per min—2250
Power—300
Amps—5
Product length—8 in