DEWALT DCF815S2 12-Volt Max Impact Driver Kit Review

Are you faced with a multitude of driving and fastening jobs but don’t really have the means to get that expensive model? You can have the DCF815S2 impact driver kit that could well be the solution you’re looking for. It is a great tool that provides you with effective fastening skills. It is lightweight, well balanced, and small enough to fit into tight places, giving you more control and precision.

Weighing just over two pounds, this compact yet powerful impact tool is specifically designed to get into narrow spaces where most traditional drivers won’t. Despite its size and minimal power, it still offers a professional level of performance. It is highly recommended for installers, electricians, handymen, and just about anyone who requires efficiency for light to medium tasks.

DEWALT DCF815S2 12-Volt Max 1/4-Inch Impact Driver Kit



  • Installed with three LED work lights that illuminate your work area
  • Lightweight and compact
  • Designed with quick-change chuck for easy bit replacement
  • Built with a variable speed trigger for precision and control
  • Comes with two lithium ion battery packs
  • Has a power rating of 950 in. lbs. of max torque
  • Includes a belt clip and carrying case
  • Covered by three-year limited warranty


  • Shorter battery life
  • Outperformed by advanced models
  • Has a noisy motor

Our Opinion

Lightweight and Compact

DEWALT DCF815S2 12-Volt Max 1/4-Inch Impact Driver KitWith the Dewalt DCF815S2, you can easily fasten or remove certain nuts and bolts in areas that are unreachable to many tools. Due to its small and compact size that measures 6.2 x 2 x 6.5 inches and weighs 2.3 pounds without the battery, you are guaranteed easy and comfortable use.

Because of its ergonomic design, the contoured handle feels well balanced in your hand, adding to its ease of maneuverability. Gone are the days when you accidentally strip a screw because you have to fasten it at an awkward angle. It is very ideal for working in very tight or overhead spaces for extended periods of time.

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Though you may be working for long periods, this tool limits the strain that you feel on your wrists and arms. You won’t experience what is popularly known as operator fatigue, a condition that arises from using heavy equipment that wasn’t crafted with the user’s comfort in mind.

Impressive Performance

The DCF815S2 offers 950 in. lbs. of max torque that can help you drive into hardwoods quickly, strongly, and with no screw-head stripping. Its impact mechanism keeps the screw turning and does not slow down easily.

While it is powerful enough to manage light projects, it will take a lot longer to finish more demanding tasks although it will eventually get things done. Compared to other brands and models in the same category, the DCF815S2 takes more than twice as long to install a single three-inch screw. This tool is honest with its limitations and works best within its specifications.

If you need things spelled out just for you to avoid any misunderstanding, this impact driver is not suitable for large and heavy projects. Its noisy motor has a tendency to sound even louder when under strained use. However, given the right circumstances, this tool could easily be a crowd favorite.

Lithium Ion Batteries

There is an array of Dewalt power tools that use the 12V battery system, and the DCF815S2 is one of them. These tools share the same design principle of being flexible and agile while still giving you a professional level performance.

Compared to the NiCad battery, lithium ion batteries are lighter, require less charging, and are more environmentally friendly. Two lithium ion batteries are included when you buy this impact driver kit. It has a run time of 1.3 amp hours, which is a bit below average when compared to other 12V-powered drivers that have 1.5 amp hours.

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A charger that can fully replenish your battery’s juice in under an hour is likewise included. It also features a maintenance mode setting that aims to extend battery life.

LED Work Light

There are three LED work lights installed in this impact driver, and this is considered to be one of Dewalt’s best designs. The lights are equally spaced in a ring around the drive bit thereby minimizing shadows that are usually cast by your hands.

This illumination feature provides you with good visibility and lets you focus on the task at hand. All lights are linked to the trigger so a slight pressure will turn the lights on. When the trigger is released, the lights are turned off.

Covered by Three-Year Limited Warranty

The DCF815S2 comes with a three-year limited warranty that protects you from hidden manufacturer defects and repairs these damages for free. Aside from that, you also get a 90-day money back guarantee in case this tool doesn’t perform as advertised. When that period lapses, the one-year free service contract kicks in.

Comparison with Dewalt DCF887M2

The DCF815S2 is an older version impact driver that has seen a lot of action. It is small in size and has a lot less power than the DCF887M2 impact driver, which is a powerhouse if you put this two side by side. If you’re looking for a tool that packs a stronger punch, then the latter might be more ideal for you.

The DCF887M2 comes with three-speed settings with precision drive features. It uses a ¼-inch hex chuck and accepts 1-inch bits. Like lots of the newer-issued models, this impact driver was given a brushless motor that helps in extending battery life and keeps the tool from overheating.

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While it is obvious which of these models is bigger on innovation, both perform within their advertised limits and do it quite well.

DEWALT DCF815S2 12-Volt Max 1/4-Inch Impact Driver Kit


The DCF815S2 is an affordable power tool that helps you get through light and medium tasks. It may not be top of the line, but it remains competitive in a world saturated by power tools. Since it comes as a kit, you’re able to get to work as soon as you receive your purchase. Its torque may not be the best in the business, but its speeds are similar to what you can find in better models.