DeWalt DCF850 Impact Driver 18v Review
DCF850 Review Rating:
(4.8 / 5)

DeWalt DCF850 Key Features
- Smallest impact driver on the market at only 100 mm
- Impact rate: 3,800 BPM
- Torque: 205 Nm
- 3-speed output modes: Mode 1 (0–1000 RPM), Mode 2 (0–2800 RPM), Mode 3 (0–3250 RPM)
- Brushless motor for increased efficiency and longer runtime
- Ergonomic grip and lightweight design for increased comfort
- Integrated LED work light for improved visibility
- Quick and easy bit changes with the 1/4-inch hex chuck
Without Battery (DCF850N)
DeWalt DCF850 Specs | |
Max Torque | 205Nm |
Impacts Per Minute | 3,800 |
Max No Load Speed (RPM) | 3,600 |
Brushless Motor | Yes |
Battery Type | 18V Lithium-Ion |
Adjustable Speed Settings | 3 Speed |
Variable Speed Trigger | Yes |
Electric Brake | Yes |
Max Bolt Diameter | M12 |
Body Weight | 0.9Kg |
Body Length | 100mm |
DeWalt DCF850 Impact Driver Review
DCF887 Review Rating:
(4.8 / 5)

The DeWalt DCF850 18V XR impact driver has quickly become a favourite among professionals and DIY enthusiasts, thanks to its innovative design and exceptional performance. In this review, we will focus on the UK version of this compact powerhouse, emphasizing its unique size, build quality, and user experience.
The Smallest Impact Driver on the Market
At just 100 mm in length, the DeWalt DCF850 is currently the smallest impact driver available. This innovative design offers several benefits, including:
- Enhanced accessibility: The compact size allows users to access tight spaces and hard-to-reach areas with ease.
- Reduced user fatigue: The smaller footprint and lightweight design (body weighing only 900g) make it comfortable to use for extended periods.
- Increased portability: Its compact size makes it easy to carry around and store, whether you’re moving from job to job or stowing it away after use.
Overhead Work and Ladder Use
When working overhead or high up on a ladder, having a compact and lightweight tool like the DeWalt DCF850 can make a significant difference in both safety and efficiency. The small size allows for easier manoeuvring while reducing the strain on your arm, ensuring that you can complete tasks more quickly and comfortably than with a bulkier impact driver.
With less weight to support, users can maintain better control and balance, which is essential when working at height. The reduced risk of fatigue also means that the chances of accidents or dropped tools are minimized, making the DeWalt DCF850 a safer choice for overhead work.
Fastening and Unfastening in Tight Spaces
The DeWalt DCF850 excels in tight, awkward spaces where visibility is poor, thanks to its compact design. Its small size allows users to reach fasteners that would be challenging or impossible to access with a larger impact driver. This capability is particularly beneficial in situations such as automotive repairs or tight construction spots, where fastening and unfastening tasks often require working in confined areas with limited visibility.
Belt Clip Convenience
Another advantage of the DeWalt DCF850’s small size is the ease with which it can be carried on your belt using the included belt clip. The lightweight design ensures that the impact driver does not weigh you down or cause discomfort while hanging from your belt. This convenient carrying method keeps the tool within easy reach and allows for quick access when needed, without taking up too much space or adding unnecessary bulk.
In conclusion, the DeWalt DCF850’s compact size offers numerous benefits, making it an ideal choice for overhead work, manoeuvring in tight spaces, and comfortable carrying on a belt clip. Its ability to tackle tasks in confined areas with poor visibility sets it apart from larger impact drivers, while its lightweight design reduces fatigue and improves the overall user experience.
Superior Build Quality
DeWalt is known for its well-built power tools, and the DCF850 is no exception. Constructed with robust metal housing and featuring an ergonomic grip, this impact driver feels like a premium-quality tool. Users can expect durability and reliability from this well-engineered device, designed to withstand the rigours of heavy-duty construction jobs.
User Experience
Using the DeWalt DCF850 is a delight, thanks to its comfortable grip and smooth operation. The adjustable 3-speed output modes allow for precision in various applications, ensuring optimal performance for different tasks. These modes come in handy for jobs such as:
- Mode 1 (0-1000 RPM): Ideal for delicate tasks like assembling furniture or working with softer materials, where precision and control are crucial.
- Mode 2 (0-2800 RPM): Suitable for medium-duty tasks, such as driving screws into hardwood or working with metal fixtures.
- Mode 3 (0-3250 RPM): Designed for heavy-duty jobs, like fastening large bolts or working with sturdy construction materials.
The DeWalt DCF850 is compatible with the DeWalt 18V XR range of batteries, meaning existing batteries and chargers from other DeWalt XR 18V power tools will work seamlessly with this impact driver.
Value for Money and Comparison to Similar Tools
When comparing the DeWalt DCF850 to similar tools on the market, it’s clear that this impact driver offers good value for money. Its combination of power, versatility, and ease of use make it a solid investment for both professionals and DIY enthusiasts.
While there are more affordable options available, the quality and performance of the DCF850 justify its higher price tag. Users who prioritize durability and long-term reliability will find this tool to be an excellent choice.
What’s The Difference Between The DeWalt DCF850 and DCF887?
The DeWalt DCF850 and DCF887 are both powerful impact drivers with many similarities, but there is a key difference between the two models: their size.
Both impact drivers have the same power output, making them suitable for a wide range of applications. However, the DeWalt DCF887 is slightly larger, measuring 134 mm in length, while the newer DCF850 model is more compact at just 100 mm in length.
This difference in size can have a significant impact on the user experience, particularly when working in tight spaces, overhead, or in situations where manoeuvrability is essential. The DCF850 provides additional benefits in terms of manoeuvrability, accessibility, and reduced user fatigue.
Conclusion
In conclusion, the DeWalt DCF850 18V XR impact driver UK version stands out as an excellent choice for both professionals and DIY enthusiasts. Its compact size sets it apart from other impact drivers on the market, making it ideal for tackling tight spaces and reducing user fatigue.
The adjustable 3-speed output modes offer precision and versatility, while its compatibility with the DeWalt 18V XR range of batteries ensures seamless integration with existing power tool collections. Overall, the DeWalt DCF850 is a well-built and reliable impact driver, perfectly suited for heavy-duty construction jobs and offering exceptional performance in a compact package.
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