The IPW-310 is an air oil pulse square drive wrench.  This is a light weight compact unit with a low vibration steel handle and motor housing.  This unit is ideal for hard joint assembly applications that require accurate torque settings.  The forward/reverse lever is located on top of the unit to start the wrench the user simply applies a light pressure on trigger. 

Features:

• Trigger start
• Excellent combination of power and ergonomic features
• Twin Hammer impach system
• Low noise, low vibration and high torque
• Reverse/forward switch 
• CE Certified
• Adjustble Torque

Specifications:

• Torque range (ft-lb): 11.8 - 20.7
• Torque range (N-M): 16 - 28
• R.P.M.: 7000
• Length: 11 5/32 in (283mm)
• Air Inlet Thread: ¼ in
• Air House: 5/16
• Weight: 1.98lb (0.9 kg ) 
• Noise Level: 90(+/-2dBA)
• Air Pressure: 90 psi (6.3 kg/cm2)
• Air Consumption: 8.8 CFM (.25 m3/min)
• Driver: 3/8 
• Bolt Size: 1/4 - 5/16in (M6-M8)