this will get it off
Ingersoll-Rand 3955B2TI Impact Wrench, 1.5 In Dr, 1600-4000 Ft Lb
Air Inlet (In.) ------------------------------ 1/2
Anvil --------------------------------------- Standard
Average CFM @ 15 Second Run Time ----- 15.0
CFM @ Full Load -------------------------- 80.0
Free Speed (RPM) ------------------------- 2750
Housing ------------------------------------ Titanium Hammer Case
Item ---------------------------------------- Pneumatic Impact Wrench
Max. Bolt Capacity (In.) -------------------- 1-1/2
Max. Torque (Ft.-Lb.) ---------------------- 5000
Min. Hose (In.) ----------------------------- 3/4
Overall Length (In.) ------------------------- 16-1/2
Required Pressure (PSI) -------------------- 90
Retainer Type ------------------------------ Thru Hole
SKUs -------------------------------------- 1FYD4
Square Drive Size (In.) --------------------- 1-1/2
Style --------------------------------------- D-Handle
Torque Range (Ft.-Lb.) -------------------- 1600 to 4000
Type --------------------------------------- Industrial Duty
Weight ------------------------------------- 38.13
Weight (Lbs.) ------------------------------ 34.6
http://www.drillspot.com/pneumatics...matic-impact-wrenches/?spc=Weight (Lbs.)=34.6