Underwater Impact Wrenches

CS Unitec underwater impact wrenches are designed for the most demanding underwater bolting applications. Our air and hydraulic underwater impact wrenches have been used for over 30 years by diving and industrial contrators. Their industrial-grade design provides adjustable torque up to 1840 ft-lbs of tightening torque and fitment up to 1-3/8" diameter (M 36) bolts. Call today to speak to one of our underwater tool specialists 800-700-5919 or 203-853-9522


  • Adjustable impact torque
  • Reversible switch controls
  • Air models include exhaust connection
  • Push button on/off control
  • 3/4" & 1" drives
  • Increased safety:
    • Safety triggers includedon all models
    • D handle configuration available on select model
Hydraulic Impact Wrenches

1-3/8" Max. Bolt Size

  • High torque
  • Best power-to-weight ratio
  • ATEX Certified for Ex Zones
  • Underwater models
Pneumatic Impact Wrenches

2-1/8" Max. Bolt Size

  • High torque
  • ATEX Certified for Ex Zones
  • Best power-to-weight ratio
  • Models for underwater use