Skip Content

Industrial Duty Air Impact Wrench, 1/2" Square Drive Size 50 to 550 ft.-lb. close
close x

Using 360° Viewing:

  1. Rotate: Use top-to-bottom, side-to-side by use of mouse arrow.
  2. Zoom In: Double click on image.
  3. Zoom Out/Reset: Put photo at full zoom & then double click.
Megaphone How can we improve our Product Images?

Industrial Duty Air Impact Wrench, 1/2" Square Drive Size 50 to 550 ft.-lb.

Price $514.00 / each

Activate Now

to save with

Select AdvantageSM

Please sign in or register to access lists

Confirm ZIP Code to determine availability.


Invalid Zip Code


Ship to: (Change)


Invalid Zip Code

  • Item # 1UMK6
  • Mfr. Model # 2135QTIMAX
  • UNSPSC # 27131501
  • Catalog Page # 3534
  • Shipping Weight 4.75 lbs.
Country of Origin USA Country of Origin is subject to change.
Note: Product availability is real-time updated and adjusted continuously. The product will be reserved for you when you complete your order. More

Technical Specs

  • Item Air Impact Wrench
  • Duty Industrial
  • Anvil Standard
  • Square Drive Size 1/2"
  • Max. Bolt Capacity 9/16"
  • Torque Range 50 to 550 ft.-lb.
  • Max. Torque 780 ft.-lb.
  • Average CFM @ 15 Second Run Time 5.0
  • CFM @ Full Load 24.0
  • Free Speed 9800 rpm
  • Retainer Type Hog Ring
  • Style Pistol Grip
  • Required Pressure 90 psi
  • Air Inlet 1/4" NPT
  • Min. Hose Size 3/8"
  • Overall Length 7-1/3"
  • Handle Material Composite
  • Handle Type Pistol Grip
  • Housing Material Titanium
  • Features The Original, Perfected Twin Hammer Mechanism, Hard Coat Anodized End Plate, Optimized Air Flow
  • Tool Weight 4.05 lb.
Megaphone How can we improve our Technical Specifications?

Compliance and Restrictions


Product availability based on selecting either shipping or pick up and a location. Dismiss

Repair Parts

Displaying repair parts for model:
  • 2135QTIMAX

Alternate Products

Rated 4.7 out of 5 by 3reviewers.
Rated 5 out of 5 by outstanding product, standard issue for our mill wrights March 20, 2014
Rated 4 out of 5 by Just put one into use with my Set Up Techs. Looking to see how it holds up under 24/7 use. Used to use the 1UMK4. It performed well, but under constant use didnt hold up as long as I thought it would. Looking forward to see how the heavy duty version performs. March 28, 2013
Rated 5 out of 5 by I have used many impacts an by far this is the best 1/2 inch impact on the market today. Ive used it daily for about a year now with no problems. With up to 650 ft pounds of tourque you can remove almost any bolt. August 15, 2012
  • 2015-11-29 T19:10:44.738-06:00
  • bvseo_lps, prod_bvrr, vn_prr_5.6
  • cp-1, bvpage1
  • co_hasreviews, tv_3, tr_3
  • loc_en_US, sid_1UMK6, prod, sort_default
1-3 of 3

Product Reviews Disclaimer:
Grainger is neither responsible for, nor does it endorse, the content of any product review or statement posted. Any statements posted constitute the statements of the poster and are not the statements of Grainger. The statements posted by Grainger employees with the Grainger employee badge represent the views of such employees and are not the statements of Grainger. Grainger makes no representations as to the appropriateness, accuracy, completeness, correctness, currentness, suitability, or validity of any product review or statements posted, including those posted by employees with the Grainger employee badge, and is not liable for any losses, injuries or damages which may result from any such product review or statements. Use of any linked web site provided in a product review or post is at the user's own risk.