ZIW440 -- 400 ft-lb -- 1/2" Twin Hammer Mini Impact Wrench


  • Adjustable 3 stages speed for Forward/Reverse.
  • ZIW440 was designed to be compact and durable.
  • Excellent power-to-weight ratio in its class.
  • Used for heavy automotive and truck repair, construction or assembly line.
  • Extremely durable Twin Hammer Mechanism. 
  • More torque with less vibration.


Brand Name Zipp Air Tool USA
Item model number ZIW440
Square Drive 1/2" (12.7mm)
Std. Bolt Size 5/8" (16mm)
Free Speed 11,000 rpm
Max. Torque (10 Sec) 400 ft-lb (543nm)
Operating Air Pressure 90psi (6.2bar)
Avg. Air Consumption 7cfm (200 l/min)
Net Weight 3.3lb (1.5kgs)
Air Inlet Size 1/4" NPT/PT
Min. Hose size 3/8" (10mm)

Downloads and Videos

[ZIW440 Parts Schematic]