DEWALT DC825B 18-Volt Cordless Impact Driver Review

If you regularly work on long projects and do a variety of fastening applications, then the Dewalt DC825B Cordless Impact Driver should be on the top of your list of products to take into consideration.

This impact driver has more than enough power to effortlessly drive screws of varying lengths and sizes as well as handle an array nuts and bolts. It is a versatile and lightweight tool that must be a staple of any handyman’s toolbox.

DEWALT DC825B 1/4-Inch 18-Volt Cordless Impact Driver (Tool Only)


  • Produces a maximum 1,330 in. lbs. of torque
  • Compact and lightweight
  • Comes with a LED light that illuminates the work area
  • Compatible with Dewalt’s NiCad and lithium ion 18V batteries
  • Designed with a sturdy and long-lasting magnesium gear casing
  • Fast application speed
  • Measures 5.8 x 6.7 x 4.1 inches
  • Weighs 4.6 lbs.
  • Reaches as high as 2,700 RPM
  • Uses a ¼-inch hex shank
  • Covered by a three-year limited warranty
  • Comes with an anti-slip comfort grip


  • Battery not included in the kit
  • Not designed for extra heavy uses

Our Opinion

Power and Versatility in One

DEWALT DC825B 1/4-Inch 18-Volt Cordless Impact Driver (Tool Only)Whether it be building a deck or driving concrete screws into masonry and brick, the Dewalt DC825B lets you perform a wide range of applications with its maximum 1,330 in. lbs. of torque and up to 2,700 rotations per minute. This translates into effortlessly driving regular construction screws into 2×4s  to fastening flooring screws into 4×8 plywood subfloor sheets with extreme ease.

It is compact and lightweight that measures 5.8 x 6.7 x 4.1 inches and weighs 4.6 pounds with the battery. It greatly reduces user fatigue because it is easy to hold with its anti-slip comfort grip. It is convenient to control even when working overhead or in super tight spaces. This impact driver can certainly drive deck screws smoothly without it twisting or pulling in your hand.

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It has a heavy-duty impacting mechanism that conducts the torque towards the screw or fastener instead of your hand, so you can definitely expect no kickbacks there. This allows you to comfortably work for longer periods as well as protect yourself, the tool and your surroundings.

The DC825B is housed in a magnesium case and has an all-metal transmission that adds to its durability and reliability. It also has a 1/4-inch drive hex shank with a quick release feature for faster bit changes.

Built-in LED Light

DEWALT DC825B 1/4-Inch 18-Volt Cordless Impact Driver (Tool Only)A common feature most Dewalt tools have is the built-in LED light; the DC825B is one of those tools. It lets you focus on your work by illuminating your workspace with the light located at the front of the tool. It makes it perfect for working at night or in tight and dark areas such as cabinets, shelves, and drawers.

Frameless Motor Technology

The frameless motor of this impact driver greatly extends the battery life by using replaceable brushes when they get worn out or damaged. There is no need to throw the whole thing away when the brushes give up on you, which is more common than you think. This saves you money in the long run.

With this Dewalt model, you can just buy a replacement brush and pop it in when you know how. You can also get it changed when you bring the tool to get serviced.

Long-Lasting Lithium Ion Battery

DEWALT DC825B 1/4-Inch 18-Volt Cordless Impact Driver (Tool Only)The DC825B uses Dewalt XRP (Xpanded Run and Performance) 18V NiCad batteries that provide you with an extended run time of up to 40%. This can last you about 800 charges before even thinking about getting a replacement. A standard battery would last about 70 screws when driven in as swiftly as possible while the XRP battery could handle about 150 screws in one go.

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Another great thing about these batteries is that they fit the entire Dewalt line of 18V tools. This lets you use multiple tools of the same series battery pack. This is great news for fans of the brand’s product line and have more than one tool in your arsenal.

The only negative thing we can find about this impact driver is that it uses this NiCad type battery. Although for the previous paragraphs we’ve raved about how it’s a cut above other kinds, it is generally considered as phased out technology what with the rise of lithium ion variants.

However, we soon found out that the DC825B could also run on lithium batteries. Therefore, while the NiCad battery can be used if you have it on hand, and even if the brand itself recommends it, you can opt for the li-ion version if you need to buy one.

Covered by Three-Year Limited Warranty

The purchase of this impact driver comes with coverage of a three-year limited warranty. Alongside that, you also get a one-year free service contract and 90-day money back guarantee. This benefit assures you that you are protected from unwanted manufacturer defects.

Comparison with Dewalt DCF815S2

When buying the DC825B, you get only the bare tool without any batteries or carrying case. The DCF815S2, on the other hand, gives you a kit that comes complete with all the necessary accessories and its numerous features.

However, the major difference isn’t with that added hardware but the performance. The DC825B offers 1,330 in. lbs. of max torque that trumps the DCF815S2’s 79. This is a whole world of difference when power is what you are looking for in your driving and fastening jobs. Obviously, you can do more with the DC825B if you are willing to shell out more moolah for it.

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DEWALT DC825B 1/4-Inch 18-Volt Cordless Impact Driver (Tool Only)


Proven to be powerful with its durable and compact body, the DC825B impact driver lets you handle a wide range of driving and fastening applications. This is a truly ideal power tool for light to medium projects.

Although this impact driver is not suitable for heavier jobs like major construction work, it is still highly recommended for home use and DIYers. It is a good staple for any handyman or woodworker’s toolbox, especially if you own other tools that are from the Dewalt 18V line.