DeWalt 20V MAX* Brushless Cordless 3-Speed 1/4 in. Impact Driver

As someone who has spent considerable time working with a variety of power tools, I recently had the opportunity to put the DeWalt 20V MAX* Brushless Cordless 3-Speed 1/4 in. Impact Driver (DCF850B) through its paces. DeWalt has a long-standing reputation for producing reliable and powerful tools, and I was eager to see if this compact impact driver would live up to the brand's high standards.

Design and Build Quality

The first thing that struck me about this impact driver is its incredibly compact design. Measuring just under 4 inches, it’s one of the smallest impact drivers I’ve encountered. This compact size is a significant advantage, especially when working in tight spaces like cabinetry or framing. The tool feels well-balanced and fits comfortably in hand, thanks to its ergonomic design and soft rubber grips. The build quality is robust, as one would expect from DeWalt, with a sturdy exterior that feels like it can withstand the rigors of a busy job site.

Performance and Power

Despite its small size, the DCF850B packs a punch. The brushless motor delivers an impressive 1,825 in-lbs of torque and a maximum speed of 3,250 RPM. This level of power is more than adequate for driving large screws and handling other demanding tasks. The impact driver features a variable 3-speed trigger, which provides enhanced control over the tool. The three-speed settings allow for versatility in different applications, from delicate cabinetry work to heavy-duty framing.

However, I did notice that the lowest speed setting (Speed 1) seems to lack the necessary power for driving screws effectively. It’s suitable for very light tasks but struggles with anything more substantial. The middle and high settings (Speeds 2 and 3) performed admirably, delivering the power needed for most tasks. Speed 3, in particular, is quite powerful and can handle even the most stubborn screws with ease.

Usability and Features

One of the standout features of this impact driver is the integrated 3-LED work light. This is a game-changer when working in dimly lit areas, providing excellent visibility and reducing the need for an additional work light. The tool also features a quick-change chuck, which makes switching out bits fast and straightforward. This feature is particularly useful when moving between different tasks, as it saves valuable time.

The tool’s lightweight design, especially when paired with a compact 1.3Ah battery, makes it easy to handle and reduces fatigue during extended use. However, for more power-intensive tasks, the 5Ah battery is a better choice, albeit with a slight increase in weight.

Durability and Reliability

While the DCF850B excels in many areas, its durability and reliability have been a mixed bag in my experience. During my testing, I encountered some issues with the tool’s longevity. After a few months of use, the motor began to show signs of wear, and the tool occasionally failed to deliver consistent power. This is concerning, especially given DeWalt’s reputation for durable tools. It’s worth noting that DeWalt offers a warranty, but the inconvenience of having to send the tool in for repairs can be frustrating.

Pros and Cons

Pros:

• Compact Design: The small size makes it perfect for tight spaces.
• Powerful Performance: High torque and RPM make it suitable for heavy-duty tasks.
• 3-Speed Settings: Offers versatility for different applications.
• Integrated LED Work Light: Provides excellent visibility in low-light conditions.
• Quick-Change Chuck: Makes bit changes fast and easy.

Cons:

• Durability Concerns: Issues with motor longevity and reliability.
• Underpowered Low Speed: The lowest speed setting lacks sufficient power for many tasks.
• Inconsistent Performance: Occasional power delivery issues.

Final Thoughts

The DeWalt 20V MAX* Brushless Cordless 3-Speed 1/4 in. Impact Driver is a tool that offers a lot in terms of power, compactness, and usability. Its design makes it incredibly versatile, and the integrated features like the LED work light and quick-change chuck add to its overall appeal. However, the durability and reliability issues I encountered are hard to overlook.

Would I recommend this tool? It depends on your needs. If you’re a professional who requires a reliable impact driver for daily heavy-duty use, you might want to consider other options or at least be prepared for potential downtime due to repairs. On the other hand, if you’re a DIY enthusiast or a professional who needs a compact, powerful tool for occasional use, the DCF850B could be a great addition to your toolkit.

In conclusion, the DeWalt DCF850B shines in many areas but falls short in others. It’s a tool with tremendous potential, but its inconsistent performance and durability concerns prevent it from being an unequivocal recommendation. If DeWalt addresses these issues in future iterations, it could very well become a top choice for impact drivers in its class.