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DEWALT Bare-Tool DC820B 1/2-Inch 18-Volt Cordless Impact Wrench (Tool Only, No Battery)

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Offering first-rate performance and durability along with exceptional ergonomics, the DEWALT DC820B 18-volt, 1/2-inch cordless impact wrench is an ideal for driving fat lag screws or loosening large, corroded nuts. The 1/2-inch-drive, variable-speed impact wrench delivers both rotation (0-2,400 RPM) and concussive blows (0-2,700 BPM) directly to the fastener for an impressive 1,740 inch-pounds of turning force. It's powered by DEWALT's 18-volt cordless batteries (not included).

Compact size for easier access into tight spaces (view larger).


Built-in LED light (view larger).

Power and Performance

Ideal for heavy-duty jobs, the DC820B delivers 1,740 inch-pounds of torque and makes quick work of fastening jobs, and its heavy-duty impacting mechanism directs torque to the fastener without kickback. The DC820B has no load speed 0-2,400 RPM and a 0-2,700 impact minimum for faster application speed. Its 1/2-inch drive is square with detent pin retention.

Dependable, the DC820B includes a frameless motor with replaceable brushes--a money-saving design that also simplifies maintenance. It also features an all-metal transmission to ensure a long life.

Comfort and Convenience

Weighing in at just 2.2 pounds and measuring just 5-3/4 inches, this compact tool can get into tight spaces other models can't access when performing a range of applications. In addition, it offers an anti-slip grip that sits well in your hand for sustained on-the-job comfort. As user-friendly as it is powerful, the DC820B features the convenience of a built-in LED light, onboard bit storage, as well as a heavy-duty, magnesium gear case.

Bare Tool

This DEWALT cordless tool does not come with a battery or charger. It's compatible with the DC9096 18-volt XRP battery pack and DW9117 15-minute charger.


This DEWALT tool is backed by three-year limited warranty covering any defects due to faulty materials or workmanship (from the date of purchase). It's also covered by DEWALT's one-year free service contract, where DEWALT will maintain the tool and replace worn parts caused by normal use--for free.

What's in the Box

One DEWALT DC820B 18-volt 1/2-inch cordless impact wrench and operating instructions (batteries and charger sold separately).

At a Glance
DC820B 18-Volt 1/2-Inch Cordless Impact Wrench
At a Glance:
  • Powerful 18-volt impact wrench with replaceable brushes

  • 1,740 inch-pounds of torque to perform a wide range of fastening applications

  • 0-2,400 RPM/0-2,700 RPM for faster application speed

  • Bare tool--doesn't include battery or charger

  • Three-year limited warranty; one-year free service
At a Glance

  • Frameless motor for extended tool durability and life

  • Compact size and weight allow access into tighter areas and reduces user fatigue

  • 1,740 in-lbs of torque to perform a wide range of fastening applications

  • 0-2,400 rpm/0-2,700 ipm for faster application speed

  • Replaceable brushes for increased serviceability; Textured anti-slip comfort grip provides maximum comfort

Product Information   Specifications for DEWALT Bare-Tool DC820B 1/2-Inch 18-Volt Cordless Impact Wrench (Tool Only, No Battery) Below:

Manufacturer Dewalt
Model DC820B
UPC 780305525858
Item Weight 0.02 pounds
Item Size 7 x 5 x 5 inches
Package Weight 2.45 pounds
Package Size 6.7 x 4.1 x 4.1 inches
Units in Package 1

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