Safe Use of Impact Wrenches on Scaffolding

IMPORTANT: Use ONLY on DROP FORGED Scaffold fittings!

• Do NOT use impact wrenches on pressed steel fittings.

• Pressed steel fittings can be damaged, distorted, or fail under impact wrench forces.

Key Safety Points

• Torque Testing is Essential

  • Confirm your impact wrench applies torque around 50 Nm (EN 74 standard).

  • Test regularly & keep records to ensure consistent torque delivery.

  • Prevent over-tightening or under-tightening that risks scaffold stability.

  
  

  Training & Risk Assessment

  • Operators MUST be trained on proper use and safety protocols.

  • Employers must perform risk assessments and monitor usage.

  
  

  Hearing Protection & Vibration Control

  • Impact wrenches produce high noise (90-105 dB) – Wear hearing protection.

  • Limit daily use to reduce risk of Hand Arm Vibration Syndrome (HAVS).

  • Maintain tools to minimise vibration and noise.

  
  

  Regular Equipment & Scaffold Fitting Inspections

  • Check tools for wear or damage; worn tools increase vibration/risk.

  • Inspect scaffold fittings for damage, especially if nuts are loosened forcibly.

Benefits of Proper Impact Wrench Use

• Speeds up scaffold assembly/disassembly – saves time and labour.

• Reduces physical fatigue compared to manual spanners.

• When tested correctly, delivers consistent, safe torque every time.

Remember:

• Drop Forged ONLY!

• Torque Test and Record Results!

• Train & Protect Your Operators!

• Inspect Tools & Fittings Routinely!

• Use Hearing Protection and Limit Exposure!

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For further safety guidance, visit NASC and FASET websites.