DEWALT 18-Volt Cordless 1/2 in. (13mm) Impact Wrench (Tool Only)-DC820B - The Home Depot
Message to Our Customers


Model # DC820B

Internet # 202512383

18-Volt Cordless 1/2 in. (13mm) Impact Wrench (Tool Only)

DEWALT 18-Volt Cordless 1/2 in. (13mm) Impact Wrench (Tool Only)

This item has been discontinued.
The Home Depot no longer carries this specific product.

$95.97 / box


Model # DC820B

Internet # 202512383

Store SO SKU # 1000952716

The next time you need to drive fat lag screws or loosen large, corroded nuts, reach for the DEWALT Compact Impact Wrench. Ideal for heavy duty jobs, the wrench delivers an impressive 1740 in.-lbs. of torque to make quick work of fastening jobs. It includes a frameless motor with replaceable brushes to simplify maintenance.

  • Delivers both rotation (0―2400 RPM) and concussive blows (0―2700 IPM) for faster application speed
  • Compact size (5-3/4 in.) and weight (2.2 lbs.) allow access into tighter areas and reduces fatigue
  • 1740 in.-lbs. of torque to perform a wide range of fastening applications
  • Heavy duty impacting mechanism directs torque to fastener without kickback
  • Durable magnesium gear case and all metal transmission for extended durability
  • Textured anti-slip comfort grip provides maximum comfort
  • Compatible with these batteries: DC9096, DC9180
  • Compatible with these chargers: DCB103, DW9117, DC9310, DC9319, DC9320, DC012
  • Backed by DEWALT's 90-day money-back guarantee, full 1-year service contract and 3-year limited warranty
  • Home Depot Protection Plan:

    Home Depot Protection Plan

Info & Guides

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Assembled Depth (in.) 
5.75 in 
Assembled Height (in.) 
9.25 in 
Assembled Width (in.) 
2 in 
Drive Size (in.) 
Product Depth (in.) 
5.75 in 
Product Height (in.) 
7.25 in 
Product Width (in.) 
2 in 
Batteries Included 
Battery Power Type 
Battery Size 
Case Included 
Charger Included 
Color Family 
Cordless Tool Type 
Impact Wrench 
Forward/Reverse Rocker Switch 
Impacts Per Minute 
Maximum Speed (rpm) 
Power Tool Product Type 
Product Weight (lb.) 
3 lb 
Tools Product Type 
Power Tool 
Torque (lb-in) 
Voltage (volts) 
Warranty / Certifications
Certifications and Listings 
CSA Listed 
Manufacturer Warranty 
90 Day Money Back Guarantee, 1 Year Free Service Contract, 3 Year Limited Warranty 


Rated 4.8 out of 5 by 9 reviewers.
Rated 5.0 out of 5.0 by Great product! This was a gift for my father for his birthday. He absolutely loves it. March 4, 2014
Rated 5.0 out of 5.0 by I bought this as a gift Everything was great. Our son Inlaw loved the impact wrench and we received in good order January 13, 2015
Rated 5.0 out of 5.0 by very tough tool I just bought this impact and it is unbelievable its small but powerful it will bust lugs with ease and anything else u put in front of it and having 18v xrp batterys just makes it that much better even being nicad batterys they have way more than enough power to spare ive had plenty of lithium batterys of other brands including snap on and the dewalt 18v xrp seem to be the best at holding a charge great tool and batterys December 20, 2014
Rated 4.0 out of 5.0 by Good product This drill is another addition to our already extensive collection of DieWalt cordless tools. We have always been satisfied with this brand of tool, and feel the same with this drill. My husband remarked he would like it to be a little more "heavy duty" in power, as he gives his tools hard wear. But overall, we are happy with the product. I would recommend this drill over other brands if you want a high quality product. I ordered this at the last minute for a Christmas present, and was pleased it arrived so quickly. Ordering online was easy, and I was notified throughout the shipping process so I knew when I would receive it. Satisfied all the way around. January 8, 2013
Rated 4.0 out of 5.0 by 1/2 in impact gun fast shipping since it showed up I have put it threw its paces. Great tool really light, about 145lb. of torque so it is not worthless. battery life started out short live but seems to last a little longer. Ran about 280 bolts out & back in that is 1/2 in bolts. February 12, 2011
Rated 5.0 out of 5.0 by Impact wrench Made my job so much easier and faster. Would recommend this 100%. November 4, 2014
Rated 5.0 out of 5.0 by BUY IT!! This little guy is awesome. I found it for $99 on tooling and got it there, same model as here. What I like best is I can use my other 18V batteries that I already have for multiple other dewalt tools! Can charge batteries while I use it. This impact wrench is light and portable, and was a boon as I changed the timing belt on my truck. It can fit in small spaces, and took out all the bolts with ease! As I got to my Harmonic Balancer I was nervous that it wouldn't have enough torque to do the job. Sure enough, it wouldn't break the large 22mm bolt. I was bummed. So I put some PB blaster on the bolt and tried again, still nothing. Finally I just tried it ONE last time before I gave up and went to the store for an air wrench, and wall! It worked! I was so happy. I love this wrench and look forward to using it on many other car projects. Totally worth the $!! March 30, 2013
Rated 5.0 out of 5.0 by Great Tool Great tool! Small enough and strong enough to work on my car. October 22, 2013
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