The JET Tools R6 series of Impact Wrenches are constructed of lightweight aluminum and can handle a six-hour work day, according to the company. The 3/8" Butterfly Impact Wrench (No. JAT-100) has a single-hammer impact mechanism, which allows a maximum torque of 75 ft/lbs and a working torque ranging from 5 to 50 ft/lbs. The compact tool features a variable-speed throttle. The impact has a 360-degree swivel brass air inlet and a built-in multi-position regulator. The 1/2" Impact Wrench (No. JAT-102) uses a single-hammer impact mechanism to offer a maximum torque of 250 ft/lbs and allows easy adjustments with a one-hand forward/reverse button. The 1/2" Impact Wrench (No. JAT-103) uses a twin-hammer mechanism to deliver a 680 ft/lbs of maximum torque. The tool offers an adjustable power regulator for variable forward power.