20V MAX* XR 3-Speed Impact Driver

Features

  • Brushless motor delivers 1825 in-lbs of torque and 3400 RPM for driving large diameter screws
  • 30% more torque for tough fastening applications
  • Variable speed trigger with 3-speed settings for precise control
  • Integrated 3-LED work light for visibility in low-light areas

Specifications

Battery Chemistry Lithium Ion
Battery Type Lithium Ion
Battery Voltage [V] 20
Chuck Size [In] 1/4
Chuck Size [Mm] 6
Color Yellow
Has Led Light? Yes
Max. Torque [Ft Lbs] 1825
Number Of Speed Settings 3
Power Source Cordless
Product Height [In] 5.8
Product Length [In] 8.07
Product Weight [Oz] 37.6
Product Width [In] 3.38
Tool Length [In] 8.07

This impact driver is designed to drive large diameter screws with a brushless motor that provides 1,825 in-lbs of torque and a maximum speed of 3,400 RPM. It features a compact design for improved maneuverability.

Model Number: DCF845B

DeWalt 20V MAX* XR 3-Speed Impact Driver Review

4.7 out of 5

As a long-time user of DeWalt tools, I was eager to get my hands on the new 20V MAX* XR 3-Speed Impact Driver (model DCF845B). Over the past few months, I've had the opportunity to put this tool through its paces across a variety of projects, from installing new cabinets to building outdoor decks. Here are my thoughts on this latest addition to DeWalt's lineup.

Performance and Power

Right out of the box, the impact driver impressed me with its performance. The brushless motor delivers a formidable 1,825 in-lbs of torque and a maximum speed of 3,400 RPM, making it more than capable of handling large diameter screws and tough fastening applications. Compared to its predecessor, the DCF887, this model offers about 30% more torque, which is noticeable when driving large fasteners. The increased power didn't come at the expense of control; the variable speed trigger and three-speed settings provided precise control, whether I was driving screws into hardwood or more delicate materials.

Design and Ergonomics

One of the standout features of this impact driver is its compact and lightweight design. At just over 5.8 inches in height and 8 inches in length, it fits comfortably in hand and is easy to maneuver in tight spaces. The balance of the tool, especially when paired with the DeWalt Powerstack batteries, is excellent. The slight adjustments in size and weight distribution from previous models make a noticeable difference in the tool's overall feel. The grip is comfortable, and the tool feels well-balanced, which reduces fatigue during extended use.

LED Work Light

The integrated 3-LED work light is another feature that I found particularly useful. It provides ample illumination for working in low-light conditions, such as inside cabinets or under decks. The placement of the LEDs around the chuck ensures that the work area is well-lit, which is a small but significant improvement over older models where the light was less effective.

Battery Life and Compatibility

Battery life has always been a strong suit for DeWalt tools, and this impact driver is no exception. The tool is compatible with the full range of DeWalt 20V MAX batteries, but I found that the Powerstack batteries provided the best balance and performance. I was able to complete a full day of work on a single charge with the 2.0 amp-hour Powerstack battery, thanks in part to the efficiency of the brushless motor. The battery latch mechanism has also been improved, making it easier to attach and detach batteries without any fuss.

Speed and Torque Control

The three-speed settings and variable speed trigger offer excellent control over the tool's performance. The first speed setting is perfect for tasks that require finesse, such as installing small screws or working with delicate materials. The second setting provides a good balance of speed and torque for general-purpose use, while the third setting unleashes the full power of the tool for heavy-duty applications. This flexibility makes the impact driver suitable for a wide range of tasks, from precision work to more demanding jobs.

Durability and Build Quality

DeWalt tools are known for their durability, and the DCF845B is no exception. The build quality is robust, with a solid feel that inspires confidence. I've used this tool in various challenging environments, including wet and muddy conditions, and it has held up remarkably well. The brushless motor and overall construction suggest that this tool is built to last, even under heavy use.

Noise Level

One area where the DCF845B shows noticeable improvement is in its noise level. While all impact drivers produce some noise, this model is quieter than its predecessors. During high-speed operation, the noise level was measured at 79 decibels, which is a significant reduction from the 86 decibels of older models. This makes for a more pleasant user experience, especially during prolonged use.

Versatility and Applications

Throughout my time with the DCF845B, I found it to be incredibly versatile. Whether I was driving large lag bolts into structural beams or carefully installing cabinet hardware, the tool performed admirably. The combination of high torque and precise control makes it suitable for a wide range of applications, from construction and remodeling to automotive work and general DIY projects.

Drawbacks

While the DCF845B has many strengths, it is not without its drawbacks. Some users might find the first speed setting to be underwhelming, as it can struggle with certain tasks. Additionally, the tool's head is slightly bulkier than some competing models, which can make it challenging to fit into very tight spaces. However, these issues are relatively minor and do not significantly detract from the tool's overall performance.

Final Thoughts

In conclusion, the DeWalt 20V MAX* XR 3-Speed Impact Driver (DCF845B) is a powerful, versatile, and well-designed tool that lives up to the high standards set by its predecessors. Its combination of high torque, precise control, and compact design make it an excellent choice for both professional tradespeople and serious DIY enthusiasts. The improvements in battery compatibility, noise level, and overall ergonomics are particularly noteworthy.

I would highly recommend this impact driver to anyone in need of a reliable and powerful tool for a wide range of applications. Its performance, durability, and user-friendly features make it a standout in its category. Whether you're tackling a major construction project or simply need a dependable tool for everyday tasks, the DCF845B is a worthy addition to your toolkit.


Project Ideas

Business

Mobile Handyman Services

Start a mobile handyman business offering services like furniture assembly, minor home repairs, and installation tasks. The compact and powerful impact driver allows you to handle a wide range of projects efficiently.


Custom Carpentry Business

Launch a custom carpentry business specializing in bespoke furniture and home decor items. The impact driver's precision and power will help create high-quality, durable products.


Construction Contractor

Offer construction services for residential and commercial projects. The impact driver's robust performance makes it suitable for various construction tasks, from framing to finishing.


Event Setup Services

Provide event setup services, including stage construction, booth assembly, and temporary structure installations. The variable speed settings and LED work light enhance productivity and safety during setup.


DIY Workshop Classes

Host DIY workshop classes teaching people how to use tools like the impact driver for home improvement projects. The hands-on experience can attract hobbyists and homeowners looking to learn new skills.

Creative

Custom Furniture Assembly

Use the impact driver to craft and assemble custom wooden furniture, such as tables, chairs, and shelves. The high torque and variable speed settings allow for precise and sturdy construction.


Outdoor Play Structures

Build safe and durable play structures for children, like treehouses, swing sets, or climbing frames. The compact design and integrated LED work light make it easier to work in various conditions and tight spaces.


DIY Home Renovations

Take on DIY home renovation projects, such as installing kitchen cabinets, building closet organizers, or constructing new walls. The impact driver's power and versatility make it ideal for various tasks.


Artistic Woodworking

Create intricate wooden art pieces, such as carved wall hangings, decorative boxes, and picture frames. The precision control offered by the variable speed trigger ensures accuracy in detailed work.


Garden Structures

Construct garden structures like raised beds, trellises, and pergolas. The high torque of the impact driver helps drive large screws into tough materials, making the construction process more efficient.