Home
Improvement & Tools
Power Tools
Drills
DEWALT DCD790D2 vs DEWALT DCD791B

Product Comparison: DEWALT DCD790D2 vs DEWALT DCD791B

Advertiser Disclosure

This site is a free online resource that strives to offer helpful content and comparison features to its visitors. Please be advised that the operator of this site accepts advertising compensation from certain companies that appear on the site, and such compensation impacts the location and order in which the companies (and/or their products) are presented, and in some cases may also impact the scoring that is assigned to them. The scoring that appears on this site is determined by the site operator in its sole discretion, and should NOT be relied upon for accuracy purposes. In fact, Company/product listings on this page DO NOT imply endorsement by the site operator. Except as expressly set forth in our Terms of Use, all representations and warranties regarding the information presented on this page are disclaimed. The information which appears on this site is subject to change at any time. More info

Best Pick

DEWALT DCD790D2 20V MAX XR Lithium-Ion Brushless Compact Drill

Check Price

DEWALT DCD791B 20V MAX XR Li-Ion Brushless Compact Drill

Check Price

General Specifications

Brand

DEWALT

Model

DCD790D2

DCD791B

Origin

USA

About the Product

The DCD790D2 20V MAX* XR Lithium Ion Brushless Compact Drill / Driver Kit is lightweight and compact for working in tight spaces for long periods of time. High-speed transmission delivers 2 speed variations allowing users to choose the level of performance needed for various applications. Comfort grip adds balance and control.

The DCD791B 20V MAX* XR® Li-Ion Compact Brushless Drill/Driver is lightweight and compact for working in tight spaces for long periods of time. High-speed transmission delivers 2 speed variations allowing users to choose the level of performance needed for various applications. Comfort grip adds balance and control.

Key Specs

Type

Cordless

Power

360 watts

460 watts

Torque

530 in-lbs

Chuck Capacity

1/2"

Rotation Speed

0-600 / 0-2000 rpm

0-550 / 0-2000 rpm

What customers say about "Key Specs"

DEWALT DCD790D2 20V MAX XR Lithium-Ion Brushless Compact Drill

I have found this drill to be very powerful for it's size and with a much longer battery life. I have had several DeWalt drills over the years that have provided a lot of good service for me.
Upping the voltage to 20 volts makes this drill very powerful for its size.
The battery life is out of this world, they batteries charge quickly and this drill/driver has the power to tackle any home project or even more advance building that you would need.
The drill it self is compact and lots of power, I like the brushless motor so fare too.
On the job this compact drill is exactly what I need unless I really need a corded drill for the job. It's got a nice slim grip, it's light weight and compact but has good speed and power.

DEWALT DCD791B 20V MAX XR Li-Ion Brushless Compact Drill

I love all DeWalt products and this drill too. It’s powerful, compact and 2 speeds to choose from
It gets the job done right. This newer model is ergonomic, well designed, strong motor and durable. One of the best power tool in the market.
The chuck is so much better , it holds bits TIGHT! The brushless motor has tons of power, hole saws in steel go through like a boss.
I love all DeWalt products and this drill too. It’s powerful, compact and 2 speeds to choose from
The old one is bulkier, larger, less powerful, and slower. This new DeWalt DCD791BR is the "big brother" to this size class of drills. Modern, strong, high torque, and bright light.

Size & Weight

Height

8.58 in.

8.3 in.

Width

7.13 in.

6.9 in.

Depth

2.64 in.

3 in.

Weight

3.57 lbs.

3.4 lbs.

What customers say about "Size & Weight"

DEWALT DCD790D2 20V MAX XR Lithium-Ion Brushless Compact Drill

love this cordless drill all features work great light weight battery lasts a long time before needing charge
I've been suffering with a cheap drill for several years. This drill is great. Very light and lots of torque.
light weight and compact compared to the older drills
Perfect weight to power ratio. Easy to use and small enough for small spaces. Well made.
This drill is one of the sweetest I've ever used. Plenty of power,useful features, lightweight and compact;

DEWALT DCD791B 20V MAX XR Li-Ion Brushless Compact Drill

Compact, well designed , and LED light has three different settings
Great drill. Light weight & plenty of power.
Have always liked the weight and compact size on Dewalts entry models. For me, the compactness and weight exceed the benefit of more features, more aluminum housing and fancier looks.
perfect size/weight for the jobs that you'll be working above your head or holding your arm outstretched for long periods of time, so your arms don't get tired.
Why this model. Wanted the all steel chuck, do NOT want hammer function. Compact size.

Features

Chuck Type

Keyless

Cutting Cap. in Wood

2 in.

Cutting Cap. in Steel

1.375 in.

Torque Levels

Reverse

Yes

Belt Hook

Yes

Lock-On Button

Rubber-Coated Handle

Yes

Battery Type

20V, 2.0 Ah, lithium-ion

20V MAX

Extras

High-speed transmission delivers 2 speeds, XR Li-Ion batteries with fuel gauge provide 33% more capacity, DEWALT brushless motor, Ergonomic handle, Compact, lightweight design fits into tight areas, LED light with 20-second trigger release delay

High-speed transmission delivers 2 speeds, LED light with 20-second trigger release delay, 3-Mode LED provides lighting in dark work environments up to 20 times brighter than previous model, Ergonomic handle, Compact, lightweight design fits into tight areas, DEWALT brushless motor

What customers say about "Features"

DEWALT DCD790D2 20V MAX XR Lithium-Ion Brushless Compact Drill

The lithium-ion batteries really hold their charge. I have owned 12v and 18v dewalt drills and the batteries are always dead when i want to use the drill. The led light is really handy for working in dark areas. Another great tool from De Walt.
Tons of power , batteries are seemingly endless and charge very quickly , ergonomically perfect and very cool looking
great reliable drill from dewalt-2a/hr batteries charge in about 25 to 30 minutes
longer run time--plenty of torque--torque clutch is dialed in just right and doesn`t vary with rpm (finally).
The batteries charge very quickly, and last just a little less than forever on a charge. The driver-drill is very light to handle and very powerful. It has an integrated LED in the base that shines onto your work, it stays on for 15 seconds after you release the trigger.

DEWALT DCD791B 20V MAX XR Li-Ion Brushless Compact Drill

The LED light with timer is very handy too. Use the 4Ah batteries and you have powerhouse of a drill.
It also has adjustable torque settings for driving screws and the ratcheting chuck is a great improvement over the older Dewalt chucks.
Upgraded my 12 year old NiCad 18v to this and am very impressed. FAR more torque and probably 4x the RPM's and even more ergonomic than the older version. All steel chuck is really nice until you accidentally hit it at full speed and burn your hand so be careful there.
This has been my favorite Dewalt drill to date, mainly due to the led light. The chuck has yet to slip and still performs as new.
I'm glad DeWalt moved the LED to the base to broadcast light where the drill bit tip is being used.

Warranty / Certifications

Manufacturer Warranty

3 year(s)

Certifications

CSA Group, NOM

Other Information

Manufacturer

Link

Manual

Download