Model#: DEWNDWMT70775

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Dewalt DWMT70775 3/8 in. Square Drive Air Impact Wrench

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  • Dewalt DWMT70775 3/8 in. Square Drive Air Impact Wrench
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\\\The Dewalt DWMT70775 3/8 in. Square Drive Air Impact Wrench features a maximum torque at 300 ft-lbs. which helps break free fasteners that are stubborn or stuck. The 11,000 RPM helps provide high power fastening with a twin hammer mechanism. This impact wrench also offers an adjustable power regulator, and features shock-resistant bumpers to help protect the housing, a composite body design, ergonomic handle with rubber cushion grip, as well as a bottom handle exhaust. It operates at 1,200 BPM with a 1/4 in. air inlet.
  • Composite body design provides delivers a durable and lightweight tool
  • Twin Hammer mechanism provides high fastening power
  • Adjustable power regulator delivers constant air flow into the tool
  • Ergonomic handle design with rubber cushion grip improves comfort and minimizes fatigue
  • Bottom handle exhaust directs air away from you and your work
  • Shock resistant housing bumpers protect the housing in harsh environments
  • 3/8 in. Square Drive Air Impact Wrench - DWMT70775


Length: 8.2 in.
Width: 7.4 in.
Height: 2.8 in.
Weight: 2.8 lbs.
Air Inlet Size: 1/4 in
Average Air Consumption (SCFM): 3.5
Continuous Air Consumption (SCFM): 3.5
Drive Size: 3/8 in
Drive Type: Square
Fitting Type: NPT
Handle Type: Pistol
Maximum Torque: 300
No-Load Speed (IPM): 1200
No-Load Speed (RPM): 11000
Operating Pressure (PSI): 90
Power Source: Pneumatic



3.7 / 5.0
3 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Yes, I would recommend this to a friend (2)
Powerful (2)
Value (1)
Lightweight (1)
Best Uses
Frequent Use (1)
Heavy Duty Requirements (1)
Jobsite (1)
Defective trigger
Bought this one new in 2016 from Amazon, I didn't use it much. Now once you connect it to air hose, the air gun spins, specially it happens in cold weather. It is a strong impact gun but spinning makes it impossible to do the job.
December 1, 2018
Originally posted at
Yes, I would recommend this to a friend
Best Uses
Frequent Use
Heavy Duty Requirements
lots of power for the money it will make a good starter gun for my son who is heading off to school to be an auto mechanic.
January 21, 2017
over 2 years ago
Describe Yourself:
Yes, I would recommend this to a friend
wuuld purchase again
Dewalt tools are very good. you cant go wrong with this item very powerful
June 11, 2016

Questions & Answers

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Browse 5 questions Browse 5 questions and 3 answers
Is this wrench powerful enough to take lug nuts off?
A shopper on Dec 11, 2016
How many foot lbs?
A shopper on Nov 24, 2017
BEST ANSWER: 300 ft lbs
What is the SCFM requirement for this tool at 90 PSI?
Don the weekend fixer on Feb 15, 2016
BEST ANSWER: 5.9 scfm
jimbo on Aug 29, 2015
BEST ANSWER: 6-10 gallon compressor would work
Is it pneumatic?
A shopper on Nov 24, 2017


Most DEWALT® Tools purchased on or after January 1, 2004 come with a warranty package that includes:

Three-Year Limited Warranty. DEWALT will repair, without charge, any defects due to faulty materials or workmanship for three years from the date of purchase. This warranty does not cover part failure due to normal wear or tool abuse. For further detail of warranty coverage and warranty repair information, visit or call 1-800-4-DEWALT (1-800-433-9258). This warranty does not apply to accessories or damage caused where repairs have been made or attempted by others. This warranty gives you specific legal rights and you may have other rights which vary in certain states or provinces.

One-Year Free Service Contract. DEWALT will maintain the tool and replace worn parts caused by normal use, for free, any time during the first year after purchase.

90-Day Money Back Guarantee. If you are not completely satisfied with the performance of your DEWALT Power Tool, Laser, or Nailer for any reason, you can return it within 90 days from the date of purchase with a receipt for a full refund - no questions asked.