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The UNITOR Impact wrench is a strong and robust impact wrench capable of the everyday use on board a vessel.

Product information


  • It is a well-balanced, powerful, reversible nutrunner, with adjustable torque
  • IW-PRO 3/4" has the capacity for heavier-than-average jobs, and have a Bolt Capacity of 1.1/16" Or 28mm bolts.


Before start using this tool make sure you have read and understood the user manual. Make sure you are wearing the correct personal protection equipment. Always use correct type of impact sockets when using this tool, be aware of if ordinary sockets are used they might shatter and cause serious injury to the operator. We strongly recommend using hearing protection, eye protection (goggles) and gloves while using the tool.



Diameter [mm] 9 Hose
Weight [kg] 5.84

Technical data

Air inlet connection [inch] 3/8" NPT BSP
Air pressure [bar] 90PSI / 6.2 BAR
Sound power level (Lw) [dB] 115.3 (dB) A-weighted
Torque [Nm] 900Ft/Lbs / 1220 Nm maximum
Uncertainty K [m/s²] 0.17
Uncertainty KwA 3 (dB)
Vibration level [m/s²] 4.6

It has a Bolt Capacity up to 1.1/16" or 28mm bolts. It meets all the requirements expected of a UNITOR tool, with the quality expectations and the reliability for the everyday use on board a vessel. This is a tool recognised and appreciated by professionals worldwide.


Product name Product number Diameter [mm] Weight [kg] Air inlet connection [inch] Air pressure [bar] Sound power level (Lw) [dB] Torque [Nm] Uncertainty K [m/s²] Vibration level [m/s²]
IMPACT WRENCH IW-PRO 1" 722199 12.2 10.6 1/2" NPT 90 - 115PSI / 6.2 - 7.9 BAR 117.6 (dB) 1800 FT-LBS / 2440 NM 0.15 5.6
IMPACT WRENCH IW-PRO 3/4" 722181 9 5.84 3/8" NPT 90PSI / 6.2 BAR 115.3 (dB) 900Ft/Lbs / 1220 Nm 0.17 4.6