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Model#: DEWNDWMT70774

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Dewalt DWMT70774 1/2 in. Square Drive Air Impact Wrench

  • Dewalt DWMT70774 1/2 in. Square Drive Air Impact Wrench
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The Dewalt DWMT70774 1/2 in. Square Drive Air Impact Wrench features a maximum torque at 600 ft-lbs. which helps to break free fasteners that are stubborn or stuck. The 7,300 RPM helps provide high power fastening with a twin hammer mechanism. This impact wrench also offers an adjustable power regulator, a composite body design, as well as an ergonomic handle with a bottom handle exhaust. It operates at 1,000 BPM and has a 1/4 in. air inlet.
  • Composite body design provides durability and lightweight design
  • Twin Hammer mechanism provides high fastening power
  • Adjustable power regulator delivers constant air flow into the tool
  • Ergonomic handle design improves comfort and minimizes fatigue
  • Bottom handle exhaust directs air away from you and your work
  • 1/2 in. Square Drive Air Impact Wrench - DWMT70774


Air Inlet Size: 1/4 in.
Drive Size: 1/2 in.
Drive Type: Square
Operating Speed (BPM): 1,000
Operating Speed (RPM): 7,300
Torque: 600 ft-lbs.



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What is the minimum size tank and minimum psi for this air impact wrench?
Old fart on Sep 16, 2015
BEST ANSWER: This question would be best answered by Dewalt directly. For assistance, please call 800-433-9258


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.