Choosing the right cordless drill depends on your specific needs, whether it’s for heavy-duty projects or casual DIY tasks. Here, we compare two popular DEWALT models: the FLEXVOLT and the ATOMIC, highlighting their key features, strengths, and limitations to help you decide.
Both drills are part of DEWALT’s 20V MAX lineup but target different user needs with differences in power, size, and included accessories. Let’s dive into the details to see which one suits your projects best.
Key Takeaways
| Power Output | FLEXVOLT delivers more torque with 340 UWO, while ATOMIC offers 300 UWO. |
| Size & Weight | Both are compact, but FLEXVOLT is slightly longer at 7.6 inches, making it marginally less maneuverable. |
| Battery & Runtime | FLEXVOLT includes a 2.0 Ah battery, whereas ATOMIC comes with two 1.3 Ah batteries, affecting run time. |
| Performance & Speed | Both drills have two-speed transmissions, but FLEXVOLT’s brushless motor provides more efficiency. |
| Intended Use | FLEXVOLT is better for tougher jobs; ATOMIC is ideal for light applications and quick tasks. |

DEWALT 20V MAX Cordless Drill Driver Set, Electric Drill, Brushless 1/2 In 2 Speed, 2.0 Ah Battery and Charger Included, LED Light (DCD777D1)
- Motor Type: Brushless motor for longer run time
- Size: Compact 7.6-inch design
- Design: Lightweight for easy handling
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At a Glance

DEWALT 20V MAX Cordless Drill Driver Set
- ✔ Length: 7.6 in
- ✔ Motor type: Brushless
- ✔ Warranty: 3 years

DEWALT 20V Max Cordless Drill Driver Set
- ✔ Included: 2 batteries & charger
- ✔ Design: Ergonomic
- ✔ Warranty: 3 years
DEWALT FLEXVOLT vs DEWALT ATOMIC Drill: Full Breakdown
DEWALT 20V MAX Cordless Drill Driver Set

The DEWALT FLEXVOLT drill offers a brushless motor, more power, and a slightly larger size, making it suitable for a wide range of applications. It’s a strong choice for those who need a reliable drill for tougher jobs while maintaining portability.
Pros:
- High power (340 UWO)
- Brushless motor for efficiency
- Compact and lightweight
- LED work light
Cons:
- Slightly longer than ATOMIC
- Higher price point
- Battery size less versatile
Best for: Heavy-duty tasks, professional use, demanding DIY projects
Not ideal for: Lightweight, quick fixes or casual DIYers
Bottom line: A powerful and reliable drill perfect for demanding tasks.
DEWALT 20V Max Cordless Drill Driver Set

The DEWALT ATOMIC drill is designed for ease of use and portability, with a high-performance motor that handles a wide range of applications. It’s excellent for homeowners and DIYers who need a reliable tool for everyday tasks without the bulk of heavier models.
Pros:
- Lightweight (3.0 lbs)
- Two batteries included
- High performance motor
- Ergonomic handle
Cons:
- Less power (300 UWO)
- Not suitable for masonry
- Limited heavy-duty capacity
Best for: Home repairs, DIY tasks, light construction
Not ideal for: Heavy-duty industrial work, masonry drilling
Bottom line: A lightweight drill that handles everyday tasks with ease.
| Feature | DEWALT FLEXVOLT | DEWALT ATOMIC Drill |
|---|---|---|
| Power Output | 340 UWO (FLEXVOLT) | 300 UWO (ATOMIC) |
| Size & Weight | 7.6 inches, 3.4 lbs | Less than 7 inches, 3.0 lbs |
| Battery Included | 2.0 Ah | Two 1.3 Ah batteries |
| Speed Settings | Two speeds, 0-450 & 1,500 rpm | Two speeds, 0-450 & 1,500 rpm |
| Motor Type | Brushless | High-performance motor |
| Intended Use | Heavy-duty, professional | Home repairs & DIY |
The Verdict
If you need a drill for demanding tasks, the FLEXVOLT is your best bet with more power and durability. For lighter, everyday use, the ATOMIC offers excellent performance in a compact, easy-to-handle package.
Hands-On Impressions
In my testing, the FLEXVOLT felt noticeably more robust, especially when tackling tougher materials like thick wood and metal. The brushless motor runs smoothly and efficiently, and the LED light was helpful in dim spaces. The ATOMIC, on the other hand, was incredibly comfortable for quick jobs and light drilling, feeling balanced and easy to maneuver for extended periods.
Deep Dive into Power and Portability
The FLEXVOLT’s higher wattage and larger size make it better suited for heavy-duty tasks, though it is slightly bulkier. The ATOMIC’s lightweight design and included batteries make it ideal for quick, light jobs around the home, with enough power for most DIY applications.Battery and Runtime Considerations
While the FLEXVOLT includes a single 2.0 Ah battery, it provides longer runtime and more power per charge. The ATOMIC comes with two smaller batteries, offering flexibility and shorter recharge times, which is handy for lighter, frequent use.Frequently Asked Questions
Can the FLEXVOLT drill handle masonry drilling?
No, the FLEXVOLT is designed for general-purpose drilling and fastening, not suitable for masonry or concrete.
Is the ATOMIC drill suitable for professional construction work?
The ATOMIC is better suited for light construction, home repairs, and DIY projects. It may not withstand heavy industrial use.
Are batteries interchangeable between these models?
No, the FLEXVOLT uses a different battery system than the ATOMIC, so batteries are not interchangeable.
Which drill is better for tight spaces?
Both are compact, but the ATOMIC’s lighter weight and smaller size make it easier to maneuver in tight spots.
Which DEWALT Drill Fits Your Needs?
Ultimately, your choice depends on how you plan to use the drill. If you’re tackling demanding projects that require more power and durability, the FLEXVOLT is the better choice. For lighter tasks, home repairs, or DIY work, the ATOMIC provides excellent performance in a smaller, more manageable package. Both are reliable options, but selecting the right one will ensure you get the best value for your specific needs.
Affiliate disclosure: As an Amazon Associate we earn from qualifying purchases. Prices and availability are accurate as of the time of publishing.