An industry first true flex-head impact wrench and with our shortest length yet at 3.34 Patented design features innovative dual air intake motor and twin hammer mechanism for increased power, and adjustable tension 180∞ flex-head with 360∞ swivel handle for maximum access Perfect for brake caliper bolts or wherever you can hook the ultra-slim impact head Front head exit exhaust, 400ft.lbs MAX torque, 280ft.lbs working torque Specification: Square Drive: 1/2 Working Torque: 280ft.lbs Max Torque: 400ft.lbs Overall Length: 3.34(85mm) Vibration Level: 4.9m/sec Air Inlet: 1/4(6.35mm) Free Speed: 8000 R.P.M Air Pressure: 90 psi Recommended Minimum Hose Bore Diameter: 3/8(10mm) Recommended Maximum Hose Length: 30 ft (10m) Clutch Type: Twin Hammer Av. Air Consumption: 4 CFM