Rockwood 1/2" Twin Hammer Impact Air Wrench

Item #31899 Brand:Rockwood

Rockwood 1/2" Twin Hammer Impact Air Wrench
Twin Hammer design with Hard Hitting 450ft-lb torque
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The Rockwood 1/2" Twin Hammer Impact Air Wrench features a large-capacity six-vane, ball bearing motor with a twin-hammer impact drive.

  • Twin Hammer design
  • Hard Hitting 450ft-lb torque
  • Time tested design
  • 6 Torque Settings
  • Ring type retainer for positive socket retention
  • Reversible direction

It is fully reversible with 6 forward and reverse torque settings and an infinitely progressive throttled trigger control.


(1) 1/2” Impact Gun
(1) 1/4” MNPT, Male quick disconnect inlet fitting


Square Drive: 1/2”
RPM: 7,000 free speed
Maximum Torque: 450 ft-lbs [813 N.m]
Air Consumption: 5 cfm [141 L/min] @ 90 PSI
Weight: 4.4 lbs.
Length: 7.5 inches
Inlet thread size: 1/4” FNPT

Reversible, variable speed, 6 vane, ball bearing air motor, twin-hammer impact drive Side mounted torque limiting control knob. 0 lowest, 5 highest


Always read the instructions before using this tool.
Always follow proper safety precautions while using this tool.
Always wear proper safety equipment while using this tool.

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