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JET JAT-100, 3/8" Butterfly Impact Wrench

Item #: 505100 
Manufacturer Item: 505100
The JET JAT-100 brings you power, control, and easy operation for your 3/8" drive small fastener jobs. This tool is great for transmission servicing, bench work or small assembly jobs.


  • 360° swivel brass air inlet
  • Aluminum construction
  • Built-in multi-position regulator
  • Compact design for cramped spaces
  • Lightweight aluminum construction
  • Lightweight aluminum construction reduces weight
  • Single Hammer impact mechanism for smooth power and torque
  • Variable-speed throttle lets you adjust speed smoothly


Length6.99 in
Width3.78 in
Height2.03 in
Weight2.04 lbs
Warranty2 Year
Air Consumption (CFM)3.0000
Air Inlet (NPT)1/4
Blows Per Minute700
End User SellableYes
Free Speed (RPM)12000.0000
Min. Air Hose (ID)3/8
Overall Length (In.)5-7/8
Sound Power (db) (A)114.0000
Sound Pressure (db) (A)110.0000
Square Drive (In.)3/8
Vibration Value (m/s²)13.4000
Working Torque (Ft.) (Lbs.)5-50
Max Torque (ft.lbs)75.0000