Full Review ⭐ DeWalt DCF899HN-XJ: 18 V XR Brushless 1/2 Inch High Torque Impact Wrench (950 Nm), Bare Unit (Hog Ring Version), Yellow/Black, 4.09 cm10.87 cm9.53 cm

Impact wrenches are powerful cordless tools designed to deliver high torque for driving and removing fasteners. As a leading power tool manufacturer, DeWalt is well-known for their high-performance impact wrenches suitable for automotive and construction applications.

The DeWalt DCF899HN reviewed here is their flagship 18V XR brushless cordless 1/2 inch impact wrench. With a max torque of 950 Nm, it packs a serious punch in a compact size. As part of DeWalt's XR line featuring extended runtime batteries, this wrench aims to provide maximum power, runtime, and durability.

This review will take an in-depth look at the performance, design, accessories, ease of use, and value of the DCF899HN to see if it lives up to expectations as DeWalt's premium high torque impact wrench. We'll highlight the pros and cons to determine if it's the right choice for automotive mechanics, construction workers, DIYers, or other users needing serious fastening torque.

Specs

The DeWalt DCF899HN-XJ impact wrench is a powerful cordless tool designed for heavy-duty fastening applications. It has the following key specifications:

• Weight - The tool itself weighs just 2.4kg. With an 18V XR 5.0Ah battery attached, the total weight is around 3kg. This makes the DCF899HN-XJ easy to handle and maneuver for extended periods.

• Dimensions - The impact wrench measures 109mm x 95mm x 41mm. It has a compact and lightweight design considering its high torque output.

• Voltage - The DCF899HN-XJ is powered by DeWalt's 18V XR Lithium-Ion battery system. It is compatible with all DeWalt 18V XR batteries.

• Torque - The maximum torque output is a huge 950Nm in forward mode and 800Nm in reverse. This makes it suitable for lug nuts, bolts, and other heavy fastening applications. The brushless motor delivers consistent power output.

The DCF899HN-XJ comes with DeWalt's standard 3 year limited warranty, providing peace of mind and assurance of the tool's durability. As with all DeWalt power tools, it is manufactured to high quality standards in the USA using global materials.

DeWalt also offers a similar 18V XR impact wrench, the DCF900N-XJ. This model has slightly lower torque ratings of 700Nm max forward torque and 600Nm max reverse torque. However, it is a bit lighter at only 1.8kg. The DCF900N-XJ uses the same durable brushless motor and battery system as the DCF899HN-XJ.

These cordless impact wrenches are designed for pros and serious DIYers who need to drive and remove large fasteners day in and day out. The high torque allows you to tackle wheel lugs, suspension components, pipe fittings, and other stubborn hardware with ease. They are versatile tools that can replace pneumatic impact wrenches for many automotive and construction applications.

The key advantage of DeWalt's 18V XR platform is its outstanding balance of power, runtime and portability. The brushless motors maximize efficiency and runtime while the compact design reduces fatigue from extended use. Paired with XR high capacity batteries, you get the performance of corded tools without any cord limitations.

For those working in tight spaces, the integrated LED worklight on models like the DCF899HN-XJ is a handy feature. The tri-LED array illuminates your work area to give you better visibility. A side handle and textured anti-slip grip also provide excellent control and comfort when using the tool continuously.

In summary, DeWalt's heavy duty 18V XR impact wrenches like the DCF899HN-XJ and DCF900N-XJ are perfect for automotive, construction, maintenance trades where high torque and portability are needed. They provide an optimal balance of power, runtime, and ergonomics to tackle a wide range of demanding fastening jobs.

Performance

The Dewalt DCF899HN-XJ impact wrench is an extremely powerful tool that delivers up to 950 Nm of max torque and 700 ft-lbs of nut-busting torque. It utilizes Dewalt's efficient brushless motor that provides superior runtime and durability compared to brushed motors.

The impact mechanism generates 0-2100 impacts per minute, allowing you to drive fasteners quickly. Speed settings let you dial in the precise amount of power needed for the task. There are 3 speed/torque settings - 0-400 rpm/950 Nm, 0-1200 rpm/710 Nm, 0-2100 rpm/400 Nm. So you get the ideal balance of power and speed.

Despite the high power output, the DCF899 still provides excellent runtime thanks to the efficient brushless motor and large 5.0Ah battery. On a full charge you can expect up to 90 bolts per charge on the highest setting. The battery also has Dewalt's Fuel Gauge which displays remaining runtime.

Overall, the performance is best-in-class with professional power, speed, and runtime suitable for automotive, construction, and industrial applications. The variable speed settings give you precise control over the power delivery.

If you need a more compact impact wrench, check out the DeWalt DCF880N-XJ. This model measures just 3.94 cm x 9.61 cm x 6.3 cm, making it easy to fit in tight spaces. It delivers up to 339 Nm of max torque, which is suitable for most automotive and light construction jobs. The brushless motor provides excellent efficiency and runtime. There are 3 speed/torque settings to match the power to your needs. Despite the small size, it can still bust loose even corroded bolts with 1050 in-lbs of nut-busting torque.

So if you need maximum power, the DCF899 is the way to go. But if you prioritize compact size for tight work areas, check out the DCF880N-XJ. Both utilize Dewalt's latest brushless motor technology to provide pro-level power along with extended runtime per charge.

When it comes to driving and removing fasteners, few tools can match the performance of these Dewalt impact wrenches. They combine several key features that pros demand - high torque output, variable speed control, efficient brushless motors, and long runtime. Whether you need to power through rusted bolts or precisely drive hardware, the DCF899 and DCF880N-XJ have you covered.

Design

The DeWalt DCF899HN-XJ impact wrench features an ergonomic and compact design that makes it easy to handle and maneuver. Despite its power, the tool feels well-balanced in hand thanks to its 5.70 lb weight and 9.53 cm height.

The rubber overmold grip gives you a comfortable, non-slip hold of the tool. This is important when using an impact wrench, as you need a solid grip to counteract the torque reaction forces. The grip fits nicely in your palm and allows you to hold the wrench steady.

The short length and slim body profile lets you work in tight spaces where a bulkier tool wouldn't fit. You can get the DeWalt wrench into small engine compartments, behind equipment, and other constricted areas. The compact head design also gives you good visibility of what you're working on.

Overall, the ergonomic shaping and grip make the DCF899HN-XJ comfortable to hold through extended use. The balance and handling allow you precise control as you power through tough bolts.

Durability

The DeWalt DCF899HN-XJ impact wrench is designed for heavy duty use and built to last. The housing is made from a durable lightweight magnesium gear case that provides strength while reducing user fatigue during prolonged use.

Internally, the DCF899 features an all metal transmission and heavy duty impact mechanism. The anvil is made from hardened steel for maximum durability when subjected to high torque applications. The hammer mechanism utilizes a reinforced drive design that distributes force evenly to improve longevity.

The internal components are lubricated for life, requiring no regular maintenance. This lubrication also helps dissipate heat that builds up during continuous operation. Overall, the durable housing and reinforced internal components allow this impact wrench to withstand daily professional use in demanding environments.

Accessories

The DeWalt DCF899HN-XJ impact wrench comes with just the bare tool, no battery or charger. However, it is compatible with DeWalt's full line of 18V XR lithium-ion batteries and chargers.

Some recommended batteries include:

• DeWalt DCB205 5Ah battery - provides longer runtime for extended use
• DeWalt DCB201 4Ah compact battery - lighter weight for less fatigue

This impact wrench has a 1/2" hog ring anvil for quick and easy socket changes. It is compatible with all standard 1/2" drive impact sockets.

Optional accessories include:

• DeWalt right angle attachment - allows access in tight spaces
• DeWalt extension bars - provide extra reach
• DeWalt impact socket sets - comprehensive socket sets designed for high torque

The DCF899HN-XJ can also be used with universal accessories like socket adapters, universal joints, and more. Its versatility with attachments makes it useful for automotive repair, machinery maintenance, construction, and heavy fastening applications.

Ease of Use

The DeWalt DCF899HN-XJ impact wrench is designed for maximum ease of use on the job site. The controls are simple and intuitive, with a variable speed trigger and forward/reverse selector switch conveniently located.

Changing sockets is a breeze thanks to the detent pin that holds sockets securely in place. Simply pull back the detent pin, remove the socket, and slide on a new one. An integrated LED light illuminates the socket area to make socket changes easier in dimly lit areas.

Maintenance requirements for the DCF899HN-XJ are minimal. The brushless motor eliminates the need to periodically replace brushes like on brushed motors. Just add a few drops of oil through the anvil every so often to keep things lubricated. The batter pack can also be stored on the tool using the integrated hang ring, reducing the need to keep track of separate battery chargers and packs.

Overall, the DCF899HN-XJ impact wrench is designed to remove headaches for the user. The simple controls, easy socket changes, minimal maintenance, and integrated features like the LED light and hang ring make this a user-friendly impact wrench suited for tough daily use.

Value

The DeWalt DCF899HN-XJ 18V XR Brushless 1/2 Inch High Torque Impact Wrench offers excellent value for the price. At around £250, it sits in the mid-range for high torque impact wrenches. While more expensive than budget options, the DCF899HN-XJ delivers professional-grade power and performance that justifies the higher cost.

You get a lot for your money with this impact wrench. The brushless motor provides increased efficiency, runtime, and durability compared to brushed motors. The impact mechanism generates a massive 950 Nm of torque, rivaling pneumatic models. The lightweight but rugged magnesium gear case can withstand heavy use on the job site.

DeWalt covers the DCF899HN-XJ with a standard 3-year limited warranty. This provides peace of mind that the impact wrench is backed by the manufacturer in case of defects. Given the typical lifespan of these tools, the 3-year warranty is sufficient.

Overall, the combination of power, performance, and key features makes the DeWalt DCF899HN-XJ an excellent value for automotive technicians, heavy equipment mechanics, and general contractors looking for a high torque cordless impact wrench. It delivers professional capabilities without the premium price tag.

Pros & Cons

Pros

• Powerful 18V motor delivers up to 950 Nm of max torque for heavy-duty fastening
• Brushless motor design provides increased runtime and durability
• Compact and lightweight at only 2.5 lbs for reduced user fatigue
• Variable speed trigger offers precise control during fastening
• Hog ring anvil allows quick and easy socket changes
• LED light illuminates work area in dim environments
• Includes belt hook and battery fuel gauge

Cons

• Expensive compared to other 18V impact wrenches
• Lacks the insane power of higher torque models
• Sockets tend to get stuck on hog ring anvil
• Battery and charger sold separately

Conclusion

The DeWalt DCF899HN-XJ 18V XR Brushless 1/2 Inch High Torque Impact Wrench is an excellent choice for automotive mechanics and DIYers looking for serious power in a compact cordless tool. With 950Nm of maximum torque, it can loosen even the most stubborn bolts and lug nuts quickly.

The brushless motor provides excellent power and runtime, while the lightweight but durable magnesium gear case and hog ring anvil ensure it can withstand heavy daily use. It's comfortable to handle thanks to the textured anti-slip grip.

With convenient features like LED worklight, battery fuel gauge, and variable speed trigger, this impact wrench improves productivity. It accepts all DeWalt 20V MAX batteries for flexibility.

Overall, the DCF899HN-XJ delivers outstanding performance similar to an air impact wrench but with cordless convenience. It's ideal for automotive repair shops, fleet maintenance, and home mechanics who regularly work on trucks, large SUVs, heavy equipment, and agricultural machinery. With DeWalt's reputation for reliability, it's built to provide years of trouble-free service.