The THOR Impact Wrench is the 2nd generation THOR designed to be the highest performing 1/2' impact wrench on the market. This impact wrench maintains a short length like the original Astro THOR impact wrench but with several improvements. This tool is rated 1,020 ft-lbs traditional Max Torque (compared to 1650 nut-busting), which is thanks to a larger motor and greatly increased air passageways in the handle and trigger. The new linear trigger included in this design allows for more throttle adjustment and feathering compared to the previous 2-stage trigger. The textured handle in this new design is slightly widened with the top hump flattened for a more comfortable grip, and roll-pin hole removed for less air leak opportunities. In addition, this tool includes a power adjustment wheel and improved FWD/REV rocking lever. This is for use with 3/8' or 1/4' NPT HI-FLO fittings (adapter for 1/4' included) 6.8 CFM continuous use.