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A-4073L 1″ Impact Wrench 2441 Nm

ASTA A-6812 is an air-powered impact wrench with extension pipe. It’s a tool used for tightening and loosening, perfect for both professionals and amateur enthusiasts.

This model has implemented a switchable rotation direction (left/right), rotary air inlet and “TWIN HAMMER” mechanism. ASTA A-6812 guarantees comfortable and precision work. It is a very functional and efficient tool – ideal for professionals such as car mechanics. Also, it delivers 2441 Nm of peak torque which is very effective while loosening stuck screws.



  • “TWIN HAMMER” system for balanced impact with a self-lubricating mechanism
  • High-quality housing made of aluminium alloy
  • Rotary inlet for compressed air
  • Torque range switch for left/right rotation


Technical specification:

  • Spindle diameter: 1″
  • working speed (without load): 6000 RPM
  • Nominal working torque range: 271 Nm – 2033 Nm
  • torque (loosening screw): 2441 Nm
  • torque (tightening screw): 2250 Nm
  • screw size: M38
  • Total length:  437 mm
  • Weight: 7,20 kg (15,87 lbs)

Rating: 4.6 (92%)
Based on: 8 ratings

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