DEWALT Bare Tool DC820B 18-Volt Cordless DrillReview


Since 1924 till now, Dewalt has produced workhorse tools to meet the toughest of the jobs. The Dewalt tools and accessories are eco-smart, low-maintenance and safe to use. The DC820B Dewalt cordless impact wrench is a widely respected tool among the professionals for its high efficiency, reliability, and low cost. This impact wrench provides a high level of control, minimal vibration and fool-proof protection against dust. The agronomical design provides high user comfort without sacrificing any quality of work.

>>In a hurry? Check out Lowest Price on Amazon<<

The Dewalt ½” impact wrench works constantly for many hours without any need for frequent charging. This cordless design makes sure you are free from any hassles of hose, a web of chords or need of any gas or oil. With the best warranty and after sales support in the category of impact tools, Dewalt DC820B deserves an applause for serving its customers around the clock since long.

Benefits of Dewalt cordless impact wrench

The biggest plus of this versatile impact wrench is its compact size. This cordless lightweight impact wrench can be used in any nook and corner of the house and is suitable for outdoor applications. This impact wrench is beneficial in other applications like the loosening of lug nuts, driving the bolts in concrete, wood, fiber or metal, DIY home jobs and automotive workshops.

The Dewalt 1/2” impact wrench is really a powerhouse in a small package. If you are wishing to have portability and power at the same time, this is the impact wrench you need, it is a boon to carry out the heavy job and that too at a much faster speed.

The DC820B Dewalt cordless impact wrench is easy to control, easy to change the chuck and easy to change the brushes of the motor. If you really want to work for the day long without causing any fatigue to your hands or arms, this wrench is for you. And what is more amazing about this cordless wrench is that this small package is available at reasonable price.

Features of Dewalt DC820B Cordless Impact wrench

Powerful motor

Dewalt is known to use high-quality parts in all its products and Dewalt cordless impact wrench is no exception. A heavy, frameless motor is installed in this model. The user-friendly design allows you to change the brushes conveniently without the need for any technician. The long life motor delivers the torque of 1740 inch-pounds which is one of the highest in this class. This high torque ensures that you carry out heavy jobs with ease and lets you finish fastening jobs in quick time.

The motor and the hammer-anvil mechanism delivers the maximum speed 2400 RPM and the maximum impact per minute the hammer can strike are 2700 IPM.

Comfortable handling

With the weight below 3 pounds and the overall length of 6.7 Inches, DC820B is a compact impact wrench which is easy to carry and work on. With this small sized impact wrench, you can easily work in any corner of the house. Even the dark places can’t be left unattended since this modular Dewalt impact gun is equipped with powerful LED flashlight. The handle gives you perfect comfort to you with its firm grip design.

Power Source

The Dewalt 18V impact wrench from Dewalt is powered by batteries. Since there is no chord involved, the mobility of this cordless wrench increases many times. This impact wrench should use 18 Volts NiCad type batteries only. The Nickel Cadmium batteries are inexpensive and easily available.

Stable operation

The sockets are secured in the wrench with the detent pin. This retention pin is reliable and lets you work for longer durations with great stability and prevents any kind of injuries.


The Dewalt cordless impact wrench comes with 3-year warranty. The Dewalt has a worldwide network of service centers to provides after sales support.


  • Torque: 1740 In-pounds
  • Drive Size: ½”
  • Drive Type: Square drive
  • No Load speed: 2400 RPM
  • Voltage: 18V
  • Power Type: Battery
  • Batteries Included: No
  • Warranty: 3-years


  • The batteries are of XRP series which provide extended lifetime.
  • To add comfort to the user, on-device bit-pocket, and magnesium gear case is provided.
  • The handle is pistol type and textured handle for slip-less grip is there.
  • The impact wrench is lightweight and provides boundless mobility.
  • Easy to work in dim-lit areas with LED flashlight.
  • Compatible to use other drive sizes with the help of adapters
  • Reliable detent-pin for securing sockets
  • Cost-effective model


  • The Dewalt 18V impact driver makes a little sound while operation which can be ignored considering many other benefits of the wrench.

Bottom line

Looking at a glance, a DEWALT-Bare-Tool-DC820B-18-Volt-Cordless impact wrench is a versatile tool ready to work in any woodworking, maintenance, and construction industries. Whatever the features, any best impact cordless wrench should possess, this all-in-one Dewalt impact gun meets the standards of a top-rated impact wrench. In the plethora of impact wrenches out there in the market, this impact tool stands tall in the crowd of impact wrenches from other brands. Reasonably priced, the impact wrench from Dewalt is highly recommended.

>>See Lowest Price on Amazon<<

My review and recommendation
  • Features
  • Advantage benefit
  • Installation, Warranty, maintenance


Out of total 350 Amazon buyers of Dewalt ½” impact wrench, around 87% of them, have rated it with 4-5 stars. Here is our recommendation for this stunning water purifier.


Leave a Reply