Here's a quote of what's advertised
1000 Ft. Lbs. OF Nut-Busting Torque!
This wrench weighs less than 4 lbs, yet packs a 7-vane motor that delivers 1000 ft. lbs. of nut-busting torque.
Four-position power selector
Push-button forward/reverse
Professional touch trigger for power modulation
Can loosen a nut tightened to 1000 ft. lbs. in 6 seconds
Torque range: 50-600 ft. lbs; Max. torque: 625 ft. lbs. (fwd), 700 ft. lbs. (rev) ; Nut-busting torque: 1000 ft. lbs; Impact: 1250 BPM; Free speed: 9500 RPM; Standard bolt capacity: 9/16''; Average air consumption: 5 CFM (24 CFM under load); 1/2'' anvil
Tool weight: 3.95 lbs.