3940B2TI 1" Air Impact Wrench, 2750ft-lb Torque, Super Duty, D-handle

The Ingersoll-Rand 3940B2TI is part of the 3900 Series, delivering high-torque performance through a 7-vane reverse-bias motor and a Twin Hammer impact mechanism. This mechanism is recognized for its balanced power delivery and long service life. The tool features a D-handle design with an inside trigger for enhanced ergonomics and control during heavy fastening or loosening tasks.

Performance and Torque:

• Breakaway Torque: 2,500 ft-lb
• Fastening Torque: 1,650 ft-lb
• Free Speed: 6,000 RPM
• Impacts Per Minute: 800 BPM
• Power-to-Weight Ratio: 117.9 ft-lb/lb Construction and Durability:
  • Titanium Hammer Case: Provides a lightweight yet extremely rugged housing for the impact mechanism.
  • Bronze End Plates: Increases the tool's resistance to wear and abrasive contaminants, extending the lifespan of the motor.
  • Pressure-Fed Lubrication: Automatically greases the impact mechanism during operation to ensure peak reliability.
  • Corrode-XTM Treatment: A specialized internal coating that protects essential motor components from moisture and contaminants in the air supply. Technical Specifications:
    • Drive Size: 1" Square (Standard Anvil)
    • Retainer Type: Through Hole
    • Air Inlet: 1/2" NPT
    • Minimum Hose Size: 3/4"
    • Air Consumption: 64 CFM (Full Load)
    • Tool Weight: 21.2 lb
    • Overall Length: 13.5 in
    • Sound Level: 101 dB