Features and Benefits:Patented oversized floating air motor and twin-hammer assembly put the weight over your hand for balance and allow for industry leading power at only 6.7" in length;Rated 940 ft-lbs traditional Max Torque (compare to 1,600 ft-lbs nut-busting or bolt-breakaway);Includes swinging FWD/REV switch, handle located power adjustment wheel, and two-stage trigger for a lighter touch without adjusting the tool;For use with 3/8" or 1/4" NPT fittings (adapter for 1/4" included);4.94lbs, 6.5 CFM continuous use, HI-FLOW air fittings recommendedMax Torque: 940 ft-lbs (1,274 N-m)Free Speed: 7000 rpmWeight: 4.94 lb ( 2.24 Kg )Length: 6.7"/168 mmVibration (m/s 2): 5.12Air Consumption: 6.5 cfmSound Pressure: 86/97 dBAAir Inlet: 3/8" NPT (1/4" NPT adapter included)Min. Hose Size: 3/8" w/ HI-FLOW fittings;The Astro Tool 1894 ONYX 1/2" "THOR" Impact Wrench is designed with a patented oversized floating air motor and a twin-hammer assembly that puts the weight over your hand for balance, and allows for industry leading power at only 6.7" in length. This impact wrench is rated 940 ft/lb traditional max torque (compared to 1,600 ft-lbs nut-busting or bolt-breakaway). This tool includes a swinging forward and reverse switch, handle located power adjustment wheel, and a two-stage trigger for a lighter touch without adjusting the tool. Use this impact wrench with 3/8" or 1/4" NPT fittings (adapter for 1/4" included) for a 6.5 CFM continuous use.Max Torque: 940 ft-lbs (1,274 N-m)Free Speed: 7000 rpmWeight: 4.94 lb ( 2.24 Kg )Length: 6.7"/168 mmVibration (m/s 2): 5.12Air Consumption: 6.5 cfmSound Pressure: 86/97 dBAAir Inlet: 3/8" NPT (1/4" NPT adapter included)Min. Hose Size: 3/8" w/ HI-FLOW fittings