3/8"COMPOSITE AIR IMPACT WRENCH;CLUTCH TYPE:TWIN HAMMER FREE SPEED:10,000RPM;AIR INLET :1/4";AIR CONS.:24SCFM;WORKING TORQUE:350FT-LB(475N-M) MAX.TORQUE:400 FT-LB(542 N-M) HOSE SIZE:1/4";BOLT CAP.:M14 LENGTH:166MM;WEIGHT:1.19KGS