1/4"HEX.SUPER DUTY AIR SCREWDRIVER; TWO HAMMER BOLT SIZE:6-8MM ;AIR CONS.:2.5 CFM MAX.TORQUE:210N-M(155FT-LB) FREE SPEED: 8000 RPM AIR INLET:1/4";HOSE SIZE:1/4" LENGTH:217MM;WEIGTH:1.3KG